Fanfic / Oni Ga Shiku Series

The year is 200X. Eighty percent of the world's population has the mysterious power known as Quirks, superpowers of all kinds, from the weak to the strong to the weird. It's a world where Heroes fight Villains, just like the comic books of old. The remaining twenty percent has no abilities whatsoever, and is known as "Quirkless". Most of them live in obscurity, without any hope to accomplish much in their lives.

The rest of those people rule the dark world of the Yakuza.

Izuku Midoriya is Quirkless, and he's going to be a Hero. And he knows it because his uncle, Goro Majima, is going to make damn sure that he has what it takes.

The Oni Ga Shiku Series is a collection of My Hero Academia and Like a Dragon crossover fics by DarkestKnightEntertainment, set in a universe where the events of the Yakuza games take place in the same world as the events of MHA. The fic starts after the events of Yakuza 2 (particularly the Kiwami version), and Izuku is four years old at the time.

The series consists of the following fics:

1. Izuku Midoriya, Mad Dog of Shizuoka (fanfiction.net) (AO3): The main fic, ongoing. It details the life of Izuku from age four.
2. Rise of Yamikumo (fanfiction.net) (AO3): Ongoing side fic, featuring the rise of Mikumo Akatani.
3. Oni Ga Shiku Gekijō (fanfiction.net), (AO3): Series of omakes of varying degrees of canonicity.
4. 31 Days: DDD: NSFW series of one-shots. The author only managed nine.
5. Oni Ga Shiku: Judgment (fanfiction.net) (AO3): Ongoing side fic, taking place during the main fic. Covers the events of Judgment.

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Feel the Heat with these tropes!

• Abortion Fallout Drama: Majima and Mirei are both still traumatized by Mirei's decision to abort their child without telling him for the sake of her idol career, leading Majima to divorce her. Both are still devastated by it many years later. When Majima met Izuku the day of his birth he had to forcibly shut down his "this is what you could have" thoughts, and Mirei takes to seeing Izuku for the first time like a gut punch - especially since her career got ruined anyway, making the abortion All for Nothing. Despite all this, they are Amicable Exes.
• Accent Interest: Ochako is baffled that Izuku seems to randomly switch from Tokyo-ben to Kansai-ben in the middle of a sentence and spends a lot of time thinking about it.
• Accidental Celebrity: Izuku fighting the Yamikumo goons at the Tokugawa Castle goes viral, thus granting him the title of "Mad Dog of Shizuoka". Downplayed in that those filming were too far away for Izuku to be identified via video, so afterwards nobody recognizes him.
• Accidental Pervert: On the day of the entrance exam, Ochako accidentally slaps Izuku's butt when she uses her quirk on him to prevent him from falling. He doesn't hold it against her, but he teasingly calls her Ass Slapper for a bit before she protests and they switch to Occhan.
• Adaptation Personality Change:
  • Izuku, BIG TIME. He starts as overly shy and with a habit of mumbling as per canon, but over time he becomes extremely confident, flirty, rather vulgar if the situation calls for it, and does not fanboy as much as in canon. After Kiryu fakes his death, Izuku takes to emulating his uncle's "mad dog" persona as much as possible. In a hilarious inversion, he's the one who now harasses Katsuki. His original personality is hidden under many, many layers.
  • A minor one with Aizawa; in canon, he makes a point of never reading his students' files from previous schools because he doesn't want to be biased. In this fic, he decides to read Izuku and Katsuki's files upon finding out they're from the same school and purposefully puts them in the same class so he can expel one of them. That doesn't happen.
• Adaptation Relationship Overhaul: As a result of Izuku being out of Katsuki's life for almost ten years, he doesn't make "friends" based on him and the others bullying Izuku, so as a result, none of his classmates like him, and now he's the class reject. Katsuki doesn't really care though.
• Adaptational Early Appearance:
  • Izuku is already friends with Tsukauchi by the time he's eight years old, as opposed to never having heard of the man until after first going to UA.
  • Izuku meets Mei Hatsume before he turned ten, as she and her father were digging through the trash for materials. They become really good friends after that.
  • He meets Midnight in the ten months prior to the UA entrance exam while on a job for Sky Finance.
• Adaptational Badass: Tsukauchi is a Non-Action Guy in canon, but here he helps Izuku in an all-out brawl against the entire Yamikumo clan.
• Adaptational Skill: This version of Izuku has martial arts training (while he has none in canon), is a good dancer, is fluent in JSL, really good at English, can switch accents at will, and is learning Korean. It's never implied in canon that something is preventing him from acquiring such skills - he just never bothered to learn there.
• Adaptational Superpower Change: Tsukauchi's quirk works a bit differently in this fic. The quirk still tells him if someone is telling the truth or not, but here it is significantly expanded. This version of the quirk is called "Judge Eyes", and when someone tells a truthful statement, his eyes glow gold. When someone lies, they glow silver. This also works for Tsukauchi's own statements, so anyone who knows how the quirk works can tell who is currently lying in a conversation by observing him.
• Affectionate Nickname:
  • Majima calls Izuku "Izu-chan", while Hisashi calls him "Dekiru".
  • Musashi used to call his son Hisashi "Hi-chan".
• Affluent Ascetic: Right before Akatani turns himself in for good, he transfers half his stocks to Izuku. Izuku, being ten, already living a comfortable middle-class lifestyle, and not knowing how to process this newest development, hands over his new stocks to Akiyama for day trading. He gets the money back (much, much more money than the original amount) five years later right before UA, but once again, instead of using that money for himself, he instead anonymously donates a hundred million yen to Haruka's family. It's unclear if Izuku has kept any of the money but he certainly hasn't used it for himself.
• Afraid to Hold the Baby: Majima was stumped when Inko asked him if he wanted to hold newborn Izuku because who the hell would hand a baby to him of all people? He gets over it pretty quickly.
• After-Action Report: The events of USJ are half-narrated in this style, with segments of police statements taken from multiple students interjecting scenes of Izuku kicking ass.
• Alliterative Name:
  • As per canon, Kazuma Kiryu.
  • Izuku's grandfather was Musashi Midoriya.
  • Taken a few steps further with Izuku's middle school teacher, Subaru Subarashii.
• …And That Little Girl Was Me:
  • When Izuku asks Akatani why he is now helping him, Akatani says that he knew a quirkless boy who wanted to become a hero and was given all the same choices Izuku was, but made the wrong choice each and every time. Akatani's devoted sub-series all but states that he was talking about himself.
  • This is how Izuku relays to All Might the story of how he ended up cleaning the beach; he says that one day a strange man in an eyepatch brought here a confused four-year-old to do "a hero's duty" to clean the trash left behind by others, and how that boy was subjected to hellish training and made many friends along the way. All Might quickly picks up that Izuku is talking about himself.
• Animal Motifs:
  • Majima and later Izuku are the "mad dog": a snarling and cackling rabid dog in a cage. It becomes somewhat literal for Izuku when a statue of a snarling dog is erected in his honor at the gates of Tokugawa Castle.
  • In Izuku's mind, Katsuki also has a raging dog motif. Izuku pictures him as a massive snarling pomeranian.
  • Kiryu leans more towards Mythical Motifs with his dragon association; it takes Haruka's life being threatened for Izuku to start seeing him as a human rather than a pillar of strength. And even so, he still doesn't feel he's on the same level as a person with Kiryu and calls him a dragon in front of others.
• Anti-Hero: Izuku has the exact same wish to be a hero who saves everyone with a smile as per canon, and he absolutely adores his family. However, he does spend ten years being raised and trained by the biggest badasses in the Yakuza series, so he comes out as a brutally efficient Combat Pragmatist who's constantly snarking, picks fights with authority even when it's completely uncalled for, swears almost constantly and acts as crazy as Majima himself. Though a good chunk of all this is caused by the trauma of the Akatani arc. His costume lampshades this, as instead of his canon suit he wears what's basically a classic yakuza suit made of black leather with a green dress shirt, complete with slicked-back hair.
• Appropriated Appellation: Mikumo Akatani used to be called "Yamikumo" by his bullies. Then he took that insult and made it the name of his Yakuza clan.
• Arson, Murder, and Jaywalking: Izuku training on how to spot weapons by observing the Majima construction crew has some interesting results.
  Izuku: Gun.
  Majima: Correct.
  Izuku: Knife.
  Majima: Right.
  Izuku: Nunchucks.
  Majima: On the money.
  Izuku: Banana.
  Majima: Ye- wait, what? Nishida, what the hell?
  Nishida: It's what you gave me, boss!
• Artistic License – Child Labor Laws: Izuku starts working as a part-timer in Sky Finance at age ten, while in real life it's illegal to employ anyone under the age of fifteen (yes, this also applies in Japan). While none of the major characters is what you'd really call a law-abiding citizen, Sky Finance is supposed to be a legitimate business. And yes, there is an actual contract drafted between Akiyama and Izuku too.
• Ascended Extra: Izuku's dad is quite a minor character, but it's better than canon where he's not even there and we know nothing but his name and quirk.
• Ascended Fanboy: Tsukauchi became a police officer and joined Division Four because he is a HUGE fan of Makoto Date, the legendary Division Four detective. He squees when he meets him for the first time.
• Atrocious Alias: The summary of Rise of Yamikumo states that this is the story of how the narrator became the hero with the worst name ever.
• Awesomeness by Analysis: Izuku can understand how each and every combat move he sees works just by seeing it once; the only thing that's holding him back is his own physical capability. The height of this is when he manages to copy Kiryu's Tiger Drop just by seeing it once.
• Badass Normal: None of the big Yakuza players, like Majima, Saejima, or Kiryu have quirks. And neither does Izuku. Yet each and every one of them is easily a One-Man Army.
• Bathroom Breakout: Izuku escapes from the bathroom window of the police station once he realizes where his mom is held and that the police would do nothing to help him get her back. He heads to his house first and then decides to grab a ride to Shizuoka.
• Batman Gambit: Izuku's plan on how to win the villain vs heroes exercise. He knows that Katsuki will gun for him specifically and that he has a strong case of Suicidal Overconfidence, so he dangled the most obvious "come and fight me" bait in front of Katsuki ever and then proceeded to crush him, leaving a completely unprepared Ochako alone to deal with Iida.
• Batter Up!: Izuku's weapon of choice is a baseball bat, as his uncle used to take him to the batting cages after practice. And they're not illegal to carry around.
• Battle Trophy: After defeating a Jingweon Mafia cell, Izuku steals a Sakura Storm sword from their supply crates and mounts it on his bedroom wall.
• Been There, Shaped History: Yuya is surprised to find out that Izuku was involved in spoiling the plot against Haruka's life and the subsequent Millennium Tower shootout.
• Beneath the Mask:
  • After the events of the Millennium Tower and Kiryu faking his death, Izuku takes to hiding his real personality and his depression under a Mad Dog persona much akin to his uncle's.
  • Izuku is surprised at All Might's admission that his smile is not fearless at all and that he feels terrified under the exterior.
• Big Eater: Izuku adores Katsudon - at age four he is able to put down three whole bowls, and Japanese portions are not small. He inherits this from his mother. It's a sign that he's depressed when he refuses to eat it after his uncle "dies".
• Big Damn Heroes:
  • Majima rescued a young Inko from members of the Midoriya family who noticed her pickpocketing just in time.
  • Sagawa of all people shows up with his men just in time to save Majima and Hisashi's lives from the remnants of the Midoriya Family.
  • The remnants of the Yamikumo clan show up to stop the shooters in front of the Millennium Tower to give Saejima and Izuku the time to storm the place.
  • Akatani shows up just in time to save Izuku, Majima and Saejima from being shot by Kurosawa and stop his plan to kill Haruka and Inko.
  • As per canon, All Might saves Izuku and later Bakugou from the Slime Villain just in the nick of time.
• Black-and-White Morality: Majima comments that kids tend to default to that, separating the world between good guys and bad guys, after Izuku asks him why the hero in a movie saved the villain's life. It's implied that this is part of the reason why Izuku refuses to believe that Majima was a criminal for a good week after he finds out, as he cannot connect the guy who spends time with him, encourages him and trains him with an organization like the Yakuza.
• Borrowed Catchphrase: Izuku, at the height of his "mad dog" moments, during intense fights, rips a page out of Kiryu's book; "Anyone who wants to die, step right up!"
• Boxing Lessons for Superman: Majima had a young Hisashi train his control over his fire-breathing quirk by doing breathing exercises.
• Boyfriend Bluff: The "Be My Boyfriend" substory has Izuku pretend to be his classmate Chisato's boyfriend for an evening at a cocktail party full of rich people to deter her Abhorrent Admirers from approaching her.
• Brick Joke:
  • Fourteen-year-old Izuku is all too pleased to imagine the ladies working in Purgatory in the same poses as the ladies in the shrink-wrapped magazine he was given ten years prior.
  • When Izuku is given the maid outfit, he thinks to himself that this better not awaken anything in him. By the end of that substory, he decides to keep it.
• Brief Accent Imitation:
  • Tsukauchi uses a fake Kansai accent when challenging the Yamikumo clan to a fight to hide that he's associated with the police.
  • Izuku slips to a Kansai accent whenever a situation gets tense; though occasionally he uses it on purpose too when he's feeling playful.
• Bring Me My Brown Pants: The last time Izuku runs in the Goldfish Poop Gang, he is rushing to save his mother's life, so he whispers to them something so terrifying that one of them pisses himself.
• Brought Down to Badass: Even out of his All Might form, Yagi is a highly skilled martial artist with far, far greater strength than his frame suggests and easily capable of wiping the floor with Izuku, who is a monster in his own right.
• Call-Back:
  • Majima's cited reason for making Izuku clean the Beach Park is that it's a man's civic duty to separate his garbage. Exactly like one of his Yakuza Kiwami encounters.
  • One of the things Kiryu gifts Izuku when he returns to Musutafu is the shrink-wrapped magazine of all things. With strict instructions to never open it until he's five years older (Izuku is four), and to keep it a secret from absolutely everyone. He even instructs Izuku not to hide it under his bed because it's not an effective spot!
• Call-Forward: In the flashback of Majima meeting Hisashi for the first time, Hisashi gives Majima a lecture on environmental preservation that scares him shitless. In both the fanfic and the canon games, which take place several years later, Majima is extremely strict about preventing littering.
• The Cavalry: Akatani sends his clan members to fight the Omi forces in front of the Millennium Tower so Izuku doesn't have to waste his time on random goons.
• The Cameo:
  • Izuku saves Koichi Haimawari from a bunch of thugs once.
  • In one of the sidestories, he helps Pop*Step find her groove as an idol.
  • There was one time when Akiyama locked Izuku in the batting centre with Saigo and let the military nut fire rubber bullets at poor Izuku.
  • Izuku meets Nick Ogata at a party.
• Charles Atlas Superpower: Izuku goes through hellish training, but within a few months his physical abilities surpass whatever other four-year-olds can manage, and he's an outright monster as he grows older. The same applies to most Heat users, who have outright superhuman abilities due to, well... a shit ton of fights.
• Chekhov's Gift: When Izuku goes on vacation at the Morning Glory orphanage for the first time, when he leaves one of the gifts Kiryu gives him is Nishiki's lighter. Around two years later, that lighter takes a bullet for him and saves his life.
• Chekhov's Gun: In the first chapter, Majima mentions that his company took a contract from UA to build them a "situation training" facility. Around thirty chapters later (and over ten years in-universe), Ochako mentions that her family's construction company lost a very big contract around ten years before, and earlier she is glaring daggers at the "Majima Construction" plaque at USJ. It's not clear if Izuku has made the connection between the two events.
• Chekhov's Skill: In Yakuza 4, Akiyama explains that he made the money needed for Sky Finance via day trading. When Akatani transfers half his stocks to Izuku, the boy asks Akiyama if he's any good at day trading.
• Child Prodigy:
  • Hisashi showed signs of being incredibly smart since young, which is why Musashi did not want him to be in the Yakuza.
  • Discussed a fair bit with Izuku; while everyone comments how smart Izuku is and how he has near Photographic Memory, his wisdom and maturity do not match his intelligence, so he finds himself being fooled quite frequently. During the Akatani arc he bitterly comments that for all that he's supposed to be so smart he fell for traps that should be obvious. By the time he's in his mid-teens, All Might's assessment is that Izuku isn't a fighting genius but he's very impressive nonetheless.
  • Katsuki could read perfectly fine at age four, cook at age seven, and was consistently on top of his class up until thirteen. Then he ran into Izuku again.
• Child Soldiers: Discussed. Hyosuke Serizawa truly thinks that Hisashi is an asset that should be used for the good of the country. This was back when Hisashi was a literal child. Majima is having none of it.
• Childhood Friend Romance:
  • Hisashi and Inko met when they were kids, Hisashi got a massive crush on Inko, they started dating when they were in high school, and eventually married and had Izuku.
  • Akatani and Midnight were friends in middle school and get together after he is released from prison.
• Chronic Hero Syndrome: Just like Kiryu, Izuku has a habit of helping out strangers in every possible situation. Lampshaded when Akiyama sarcastically asks Izuku if he should order him a grey suit (like the one Kiryu wears).
• Commonality Connection: Izuku and Jirou become friends over their shared taste in music - particularly old bands.
• Composite Character: Haruka remarks that Izuku takes after both the best and worst traits of Majima and Kiryu. And of course he still has some of his original personality traits.
• Confusion Fu: Majima is stated repeatedly to be extremely unpredictable, and it's a trait that Izuku picks up easily. The narration even states that Izuku is on his way to becoming the world's most unpredictable hero.
• Continuity Nod:
  • There are movies based on the in-universe Yakuza game "Agakure Quest". Izuku and his dad are big fans.
  • Izuku has watched a ton of zombie movies due to his uncle being obsessed with them.
  • At one point Izuku makes fun of Kiryu's shortly-lived "Judgment Kazzy" career after Kiryu quotes the lyrics at him.
  • Sometimes Akiyama sends Izuku to the Pocket Circuit stadium to have fun.
  • Izuku's ringtone is 24-Hour Cinderella.
  • Apparently Bleach Japan wants to shut down Purgatory.
  • At one point Izuku sings "Judgment -Shinpan-".
• Contrived Coincidence:
  • Izuku first meets Kiryu because Haruka's school happened to take a class trip to Musutafu (to visit UA), Kiryu volunteered to be a chaperone, and he just so happened to select the beach park for his smoke break, at the time Izuku was also there.
  • Majima first runs into Hisashi minutes before he arrives at the Midoriya Family HQ to deliver a message to Musashi.
  • Izuku finds put that Kiryu is actually alive by running into him at the train station.
  • The Dragon Quest III copy Akiyama bribes Izuku with used to belong to Ichiban.
• Crazy-Prepared: The Florist's security for the monitor room, on top of the handprint, now has face recognition, voice recognition, key phrase locking, and weight sensors, just in case.
• Crossover Relatives: Downplayed. Majima is only Izuku's Honorary Uncle because he took in Hisashi and Inko when they were young, and they refer to him as their older brother. There is no blood relation between the three, and it's unknown if he's actually in the family registry. That said, Izuku never acknowledges the lack of a blood relationship.
• Curb-Stomp Battle:
  • The striking majority of any fight Kiryu is in, with the winner being Kiryu obviously. Izuku managing to land a single hit on the man in the span of ten minutes is treated as a testament to Izuku's tenacity.
  • Akatani treats Izuku like a total joke in their first encounter; he's hardly even trying.
  • Izuku makes a total joke out of Katsuki in the first battle trial.
  • Tatsuya Ukyo curb stomps Katsuki during training harder than Kiryu ever stomped Izuku.
• Dance-Off: Izuku challenges Pop*Step to a dance battle to convince her to help her with her dancing.
• Dark and Troubled Past: It's a Yakuza fic, what did you expect? Aside from the canon stuff, we got...
  • Musashi's father was an alcoholic gambler and his mother abandoned them both. Figuring that he was already coming from shit, he ought to be even shittier, so he ran away from home at eleven, joined an underage gang, and by the age of twelve, he was running errands for the local Yakuza. And ten years later, that family orders Hisashi to murder his own father. Which he does. And it messed him up for life. And this was before he became a killer for the Omi and his wife died in childbirth. No fucking wonder he doesn't want his son to follow on the same path.
  • Hisashi's father was murdered on Hisashi's birthday by his own subordinate, and Hisashi's last memory of him is Musashi using himself as a Human Shield to protect Hisashi from being gunned down. He has constant Flashback Nightmares about this.
  • Inko ran away from the orphanage and was picked up by Yuya's Black Thunder biker gang for a while, resorting to picking pockets with her quirk and other kinds of small-scale theft. She also got separated from the gang while they were evading the cops, so she ended up being on the streets of Sotenbori before she tried to pickpocket Majima.
• Declaration of Protection: The day Izuku was born, Majima made a silent promise that as long as he's alive, no one is going to hurt him.
• Determinator: Izuku owns this trope. Escaping the police to beat up an entire clan and its patriarch while sporting a blinded eye and a concussion, going to Tokyo, fighting Kiryu, raiding Millennium Tower, and fighting his own uncle, all without any sleep in the meantime? At age ten??
  Kiryu: You don't know when to quit, do you.
  Izuku: Ya never taught me how.
• Ditzy Genius:
  • Hisashi Midoriya is a certified genius, given that he's the head researcher of I-Island's Quirk theory and development department, but socially, he's a complete dunce. It doesn't even occur to him that leaving away from home when his four-year-old son just received a devastating diagnosis and never contacting him would be a bad idea because he assumed Izuku "needs space", and he can't quite grasp that intelligence doesn't equal emotional maturity. Majima gives him quite the "The Reason You Suck" Speech over this and commands him to call Izuku for an hour at least once per week.
  • Mei Hatsume is an absolutely brilliant budding support engineer, but she has next to no social awareness (as she calls her inventions "babies" and doesn't understand why some people may misunderstand what she means), and completely forgets to eat or sleep when she's working. Izuku has to force-feed her to make sure she's receiving proper nutrition. And that's nothing to say of her fondness for explosions.
• Double Take: After Izuku saves Koichi, Koichi asks him if he's planning to take the UA entrance exam this year. Izuku replies that he can't because he's eight.
  Koichi: Ah, I see... Wait, you're what?!
• Dragged into Drag:
  • One of Akiyama's clients is a woman who wants to open a maid cafe, so naturally his test for her is to have her manage a pre-existing maid cafe for a day to see firsthand how she runs her business (and defends her staff). And who is the Sky Finance employee who goes to check how things go? Hana? Nope! It's Izuku forced into a maid outfit by Akiyama and a couple of female friends of his.
  • A more benevolent example occurs after the USJ, when Midnight takes Izuku aside after school hours and teaches him how to do his own makeup so he can take his mind off things for a bit. Izuku admits that he feels better after not having to worry about anything school, hero, villain, or crime-related for a bit.
• Dramatic Irony:
  • When Majima arrives at the park where Izuku is crying in chapter one, he gets annoyed at the crying kid and ignores him while looking for Izuku because he assumes that Izuku is better behaved. He's enraged when he realizes that Izuku is the crying kid.
  • When Izuku learns that the name of Kiryu's brutal counter move is "Tiger Drop", he silently wonders if anyone's ever used it on an actual tiger. Which Kiryu has. On two of them.
• Early-Bird Cameo: Izuku finds Akatani talking on the phone with Chisaki Kai five years before he's supposed to appear in the story.
• Early Personality Signs:
  • Inko got her hands on the Analects of Confucius when she was just a kid, and she was quoting passages from there right from the get-go. Nowadays she's an Ethics professor.
  • Saejima senses that there's a rabid dog locked into Izuku when Izuku is only seven or eight years old, well before he actually gets the title.
• Effeminate Voice: Izuku is annoyed that at age fifteen his voice is still rather high-pitched cause he's a man, dammit!
• Embarrassing Old Photo: One of Izuku's ideas for making Katsuki fight him is to ask Mitsuki for Katsuki's old baby pictures and post them all over the school. Fortunately for Katsuki he never gets to go through with his plan.
• Enemy Scan: Majima somehow can make his vision go black and white except for the people he's scanning and detect weapons. It's unclear if this is Aura Vision, a Quirk (he says he's quirkless), a Heat thing, his eyesight being weird, or just how he visualizes things. He also teaches Izuku how to detect weapons.
• Et Tu, Brute?: Played for Laughs when Kiryu spots Haruka encouraging Izuku to kick Kiryu's ass along with the other kids.
• Even Evil Has Standards: Akatani thinks that Chisaki's plan to get rid of quirks is downright insane and refuses to help him with it. He also refuses to help Chisaki with his coup against the Shie Hassaikai Patriarch.
• Everyone Has Standards: Izuku isn't angry that one of the clients of Sky Finance wanted the funds to gamble - it's Kamurocho, it's the capital of sex, money, and gambling. No, the reason he's pissed at the guy is because he lied about wanting the money for his business and is now spending it on stuff that has nothing to do with said business, all while having no intention to return it.
• Expository Hairstyle Change: After the Akatani arc, Izuku can no longer bring himself to cut his hair and spends three years wearing it in a ponytail and barely taking care of it. This is to show that he is slightly depressed, and it is only after he's accepted in UA that he feels well enough to cut it again. Even then, he cuts it at chin length, longer than it was in canon, and he slicks it back when he's in his hero suit.
• Extreme Mêlée Revenge: When Izuku finally defeats Akatani, he keeps pounding on him so hard that it takes Tsukauchi's intervention to stop him from killing him.
• Eye Scream:
  • Izuku is forced to fight with his left eye temporarily blinded from an injury during the Akatani arc.
  • Essence of a Brutal Opening starts with Izuku jamming his fingers into the enemy's eyes.
• Failure Montage: After Izuku declares he's going to win the sports festival, he decides to train by picking up jobs in Kamurocho... only for literally everyone he knows to tell him that they have nothing lined up. The whole sequence is even prefaced with a "how hard could it be" line.
• Fake Kill Scare: Izuku is hit with two within a week; first the Omi pretends to kill his uncle, which sends Izuku to a depressive spiral for a week, and then Akatani shoots his mom with rubber bullets over the phone, leading Izuku to think his mom is dead.
• False Rape Accusation: Played for Laughs of all things. When the Slime Villain tries to possess Izuku and Izuku keeps dodging his attempt, the frustrated villain sprouts a very questionable line.
  Slime Villain: Just let me inside you!
  Izuku: (disgusted stare) Today was just going too well, wasn't it? Of course I'd run into one here.
  Slime Villain: One of what, exactly?
  Izuku: As if you even need to ask, ya fuckin' pervert. HELP! RAAAAAAA-
  • When Izuku runs into him again later that day he calls the villain a pervert again, much to the villain's frustration.
• Fantastic Ableism: Being Quirkless is viewed as a disability in the eyes of the wider public, even though public use of Quirks is prohibited, making the point moot.
• Fighting Fingerprint: Sosuke Komaki realizes that the random green-haired kid knows Kiryu because he uses Komaki counters, and the only person who knows them out of the family is Kiryu.
• Final-Exam Boss: When Izuku challenges his uncle Majima on top of Millennium Tower, Majima states that this will be his final exam before ripping off his jacket.
• Forgotten First Meeting: Izuku doesn't remember any of his meetings with his uncle prior to age four because he was too young. At the start of the fic, the last time Izuku had seen him was two years prior (at age two), so it takes a few minutes and a bit of singing for Izuku to recognize him. And technically, their first meeting was when Izuku was born, there's no way anyone would remember that.
• Former Teen Rebel: Inko used to be a smoker, swear, and she was even in a biker gang for a while. All of this changed when she got pregnant, and now she's very sweet.
• From Nobody to Nightmare:
  • Mikumo Akatani started off as a quirkless bullied teen before his Start of Darkness resulted in him becoming a Yakuza Patriarch and the Knight of Cerebus for poor Izuku.
  • Musashi Midoriya was yet another kid running away from a poor and abusive home and doing small-time theft before becoming an assassin and Yakuza Patriarch with his own Red Baron title.
• The Ghost: Musashi Midoriya somehow made it impossible to find any information on him in the very town he's running. Majima is quite miffed about it since he's supposed to give a message to the guy.
• Goldfish Poop Gang: Chinpoko-chan, Oshiri-chan, and Kogan-chan - aka the trio that Izuku keeps beating up all the time. By the way, those aren't their normal names; they mean penis, ass, and testicles.
• Gratuitous English:
  • Izuku is quite good at English (though not entirely fluent) so he occasionally says things in English when he wants to insult someone without being understood.
  • Present Mic is using a lot of English in his everyday speech, though it's justified considering he's an English teacher.
• Gratuitous Japanese:
  • The fic's title translates to "Laid by Demons" or something along these lines.
  • In-Universe everyone speaks Japanese full-time so this only applies on a meta-level, but several terms and many insults go untranslated. Especially Izuku's more vulgar nicknames for people. Sometimes translations are provided in the chapter notes.
• Grievous Harm with a Body: Izuku uses one of the villains attacking USJ as a human flail.
• Groin Attack: The first time Izuku "spars" with Kiryu (read: Izuku tries to land a hit and Kiryu dodges), he manages to tackle the man on his groin. Kiryu spends the next minute regretting underestimating the kid trained by Majima.
• Handicapped Badass:
  • As per canon, Majima lost his left eye ages ago.
  • During the battle at Tokugawa Castle, Izuku suffers a head wound that forces his left eye shut for quite a while. After this battle, even as he fully recovers he still elects to keep his left eye closed when fighting, thus turning this into Willfully Weak (not that he doesn't still kick major ass).
• Heel–Face Turn: Akatani goes from antagonist to helping Izuku after Izuku proves he has what it takes to become a hero, and that he won't give up like Akatani did.
• Heroic Second Wind: When Izuku, age ten, faces around thirty or so Yamikumo clan members on his own, he quickly gets overwhelmed and suffers a head wound... and just as he's about to lose consciousness, he sees a vision of his mom and uncle and is reminded of why he's fighting. The scene turns more terrifying than heroic though, with how Izuku is Laughing Mad as he gets up.
• Heroic Self-Deprecation:
  • Izuku feels that he hasn't earned the right to call Kiryu something as affectionate as "Uncle Kaz" because he's not good enough yet, even though all the kids at Morning Glory call him that and Kiryu himself encourages it.
  • Majima thinks that nobody will miss him if he dies, even though in the previous chapters Izuku fell into depression because he thought his uncle was dead. Izuku gives him quite the tongue-lashing over this.
• Hiding Behind the Language Barrier: Comes with Izuku knowing English, Korean and JSL on top of Japanese.
  • Izuku frequently uses English when cursing or insulting other people, such as the time he tells Iida to "kiss his ass" in English after Iida calls him out for interrupting President Mic during the entrance exam. He picked this habit from Majima, who used to curse in English around Izuku when he was really young.
  • A more plot-critical example is when he and Hisashi use JSL to quickly make up a lie about Izuku having a quirk to sell to the police.
• Hilariously Abusive Childhood: Izuku's flashbacks of his Training from Hell definitely fall into this. From Majima screeching at him and chasing him like a banshee, the countless rubber bullets he has been shot with, being forced to learn how to dance on rollerskates, the list of crazy just goes on.
  It occurred to [Izuku] that maybe the male role models in his left a little something to be desired when it came to regard for his immediate safety and mental health.
• Honorary Uncle: Izuku has plenty; the first is Majima, whom he calls Goro-jiji, and after meeting Saejima and finding out he and Majima are brothers he calls him "Taijiji". He also calls Majima's ex-wife "Mirei-baba", because he knows they still love each other, to which she does not object. Kiryu insists Izuku calls him "Uncle Kaz" like all the kids in the Morning Glory orphanage do, but Izuku declines because he doesn't think he has earned it. He only does so during the Millennium Tower raid, and after Kiryu fakes his death.
• Hormone-Addled Teenager: Teenage Izuku is very appreciative of the female form.
• Humble Goal: When Iida and Izuku state their motivations for becoming heroes (for Iida to follow his Heroic Lineage and for Izuku The Promise given to several people), Ochako feels ashamed that she's Only in It for the Money. However, after Izuku asks her to elaborate, she explains that she wants to give her parents a comfortable and easy life, to which Izuku and Iida wholeheartedly respond that this is a perfectly respectable and admirable goal on its own.
• Iconic Outfit: Izuku has his favourite custom-made jacket gifted by Majima; it's a stajun (a baseball jacket) made of a special quirk-enhanced fabric that makes the outfit grow as Izuku does, it's in the same green as his hair, and in the back, it's the Hannya part of Majima's irezumi with the phrase "Bring on the fights!" around it in red letters. Izuku wears it through the entirety of each autumn and winter.
• Idiot Ball: Akatani is normally quite the Manipulative Bastard, so that time in his teens when he tried to pass the UA physical exam without a quirk or any physical training whatsoever was... not exactly his smartest decision.
• Immediate Self-Contradiction: An example lampshaded by Izuku. After the first battle simulation, All Might scolds Izuku for using excessive force and almost killing Katsuki during training. Izuku interrupts him mid-speech and points out that All Might is sending mixed messages, as he wants to give Izuku One For All (which is a Super-Strength quirk) while simultaneously saying that he doesn't trust Izuku to control his current power level.
• Impossibly Tacky Clothes: Everyone agrees that Majima's gold snakeskin jacket is incredibly tacky; including the man himself and the ones who gifted it to him.
• Improbable Age: Overlapping with Adorably Precocious Child, Izuku is picking - and winning - fights with gangs at age eight. He's involved in the Millennium Tower raid and destroys the Yamikumo clan when he's ten.
• Improbable Weapon User: Izuku takes down the Zero Pointer with Mei's fish cannon. You know, the thing that's meant to help salmons cross streams.
• In-Joke: Izuku, Majima, and most people who know them have taken to calling the Musutafu beach "Junkbeach". Izuku is kind of disappointed when All Might doesn't get the joke.
• In Medias Res:
  • Several chapters in Izuku Midoriya, the Mad Dog of Shizuoka are either Full Episode Flashbacks, or feature regular flashbacks, of events that happened long before the current events of even the beginning of the fic.
  • The entire fic Rise of Yamikumo is presented as Akatani telling the story to Ichiban.
• In Spite of a Nail: When Izuku meets All Might in this fic, instead of just asking him if "I can be a hero like you", he specifies that he wants to be the kind of hero who saves others with a fearless smile, who makes everyone feel safe just by being there, and who can be a symbol of peace. However, even though Izuku removes the physical ability factor from the question, All Might still tells him no because his own so-called fearless smile is a lie meant to soothe the masses, and he cannot in good consciousness tell Izuku to fight in the front lines when he himself almost got killed in a fight. So the remainder of the conversation goes basically like canon.
• Innocent Innuendo:
  • Lampshaded when All Might and Izuku are discussing finding successors for One For All.
    All Might: I don't want anyone else, I want you.
    Izuku: That sounds awful out of context.
    All Might: Good thing we have context, then.
  • Mei thinks of making support items for other people as "making babies with them".
• Insanity Immunity: Izuku explains that making someone sense Killing Intent with Heat is half-dependent on the victim's mental state and their ability to perceive social cues. So if the victim is not in the right state of mind or has some kind of mental disorder that makes them incapable of reading the room, then this technique is nowhere near as effective.
• Intergenerational Friendship: Izuku and Tsukauchi strike a friendship when Izuku is in elementary school and Tsukauchi is in his late twenties.
• Internal Reveal: Izuku thought that his family was normal and that his uncle was just eccentric. Then the Akatani arc happens, and he finds out that his entire family and most of their family friends are deeply involved in the yakuza.
• It Runs in the Family: Kurosawa snidely remarks that disabilities must run in the family when he sees that Izuku's left eye is busted.
• It's All My Fault: Mei blames herself for the injuries Izuku suffers in the USJ because her support items were not enough to save him.
• It's Not You, It's My Enemies: Discussed. Izuku and All Might agree that hero work makes it very difficult to maintain romantic relationships.
• Kids Are Cruel: Namedropped. Izuku thinks that children are cruel not because of any actual malice but because nobody taught them to be kind yet. So they lash out at anything they're completely unfamiliar with, which in this case is Izuku who is abnormal in that he doesn't have a quirk. Not that these thoughts protect him from the childhood trauma.
• Killing Intent:
  • Majima towards anyone who hurts his family. When he and Izuku "first" meet, Izuku is scared shitless by the evil black aura as he's telling his uncle why he's crying alone at the park.
  • Akatani's is so strong that Izuku thinks the man has a fear quirk before Tsukauchi tells him otherwise.
• Klingon Promotion: Hyosuke Serizawa became Patriarch of the Midoriya family after killing the previous Patriarch Musashi Midoriya. By accident, since he was aiming for Musashi's son.
• Knight of Cerebus: The early chapters of the fic are wholesome Slice of Life with Majima training Izuku and Izuku meeting new people. And then Mikumo Akatani shows up and everything goes to hell for Izuku.
• The Knights Who Say "Squee!": Tsukauchi is so thrilled to meet Date that he literally squees. For a few minutes.
• Last-Minute Baby Naming: Cho Hee did not get to name her son before he was taken from her (it's implied she didn't know the gender while she was pregnant), so when she takes him back she decides to name him Izuku after the guy who saved both their lives.
• Laughing Mad: Izuku when under extreme pressure, in a manner eerily similar to Majima's craziest cackles.
• Lawyer-Friendly Cameo: All major real-world websites have altered names in this fic. For example, Netflix is called NexFlix.
• Lethal Chef: Downplayed, but Kiryu's "specialty" curry is known to make people cry.
• Locked Out of the Loop:
  • Majima and everyone else in Izuku's family keep him out of the loop regarding their Yakuza connections. Up until Akatani shows up.
  • Izuku has told All Might that he was trained by his uncle and what some of the shenanigans of his daily life are like (like his vigilantism activity or some of the jobs he does for Akiyama), but he has NOT told him about his family connections to the Yakuza, and presumably he left out several names too. So All Might is utterly shocked at how brutal Izuku's fighting style is once they get to UA.
• Loophole Abuse: The main reason why quirkless on quirkless crime is on the rise is that since they don't have abilities, they can't break the anti-vigilantism laws, they cannot be labelled as villains, and therefore no heroes bother (or are able) to interfere with them. This is why the Tojo clan and other major Yakuza families are mostly quirkless. This is also how Izuku gets away with fighting gangs and other street criminals.
• Loose Floorboard Hiding Spot: Hisashi and Inko hide their gift to Majima under the floorboards of his apartment, as not even he knew they were loose. They tell him about it when they move out.
• Lying to Protect Your Feelings: When Izuku asks Tsukauchi if there are any heroes helping find his kidnapped mom, Tsukauchi tells him that lots of heroes wanted to help him, but they were all too busy. Except that Judge Eyes shows that Tsukauchi is lying, and Izuku knows for a fact that Musutafu isn't dangerous because UA is there. Add in how the news barely covered the fact that his uncle was shot and Izuku realizes that none of the heroes is any interested in helping the quirkless. Tsukauchi lied to prevent him from feeling even more down.
• Magnetic Hero: Many people in UA note that Izuku has this bizarre draw to him, despite his excessively brutal methods and rather crude attitude. He easily wins the class elections, and even Neito has to admit that his mad cackling is captivating in some way.
• Memento Macguffin:
  • Majima's signature snakeskin jacket is revealed to be a gift from Hisashi and Inko, who got it for him as a Christmas gift using the allowance he gave them for themselves. Majima thinks that it's the single tackiest jacket ever and that no sane person would wear it, but he wears it all the time anyway.
  • Izuku keeps getting handed stuff by other people, to the point he lampshades it by wondering what is it with old men giving him their used stuff.
    • Kiryu hands Izuku a lighter implied to be Nishiki's as a memento, stating that he can't stand to look at it anymore.
    • After Kiryu fakes his death, he leaves for Izuku the old baseball bat Majima once beat him up with.
    • Akiyama gives Izuku an old watch of his after terminating his employment with Sky Finance.
• Mercy Kill: When Musashi saw his father for the first time after over ten years, the man was so wrecked by his life's misfortune that Musashi could only feel relief that he was about to kill a man who was already dead.
• Metaphorgotten: According to Daiki Hatsume, fourth time's the charm!
  Izuku: I think you mean third.
• Minor Living Alone: Hisashi and Inko shared an apartment during their high-school years without having any adults around. Majima paid for rent and utilities for a year.
• Misery Builds Character: Izuku thanks Kurosawa for putting him through hell in a few days he achieved the growth that would have taken years.
• Mistaken for Murderer: Izuku defeats Katsuki in the battle trials by using Maijma's Heat Action in which he snaps the opponent's neck to knock them out. Understandably, All Might and the rest of 1-A think that Izuku actually murdered Katsuki. It takes Izuku kicking Katsuki a few times until he groans from the pain to convince them he's not dead, and even afterwards the whole thing appears to be something of a Trauma Button to the rest of the class - at least Jirou. Aizawa tells Izuku that he needs to work on that hold because the words "hero" and "snapped neck" usually lead to memorials and lawsuits.
• Mistaken for Undead: When Izuku sees All Might's true form for the first time, he assumes that All Might has been infected by Mei's zombie virus and tries to slug him with his bat.
• Most Definitely Not Accompanying Us: Izuku is not happy not to be included in the plans for the Millennium Tower raid, but seeing what his mental state is, Kiryu challenges Izuku to land a hit on him once within a span of ten minutes to see if he's capable and determined enough. Eventually, Izuku succeeds - with Kiryu's own Tiger Drop - and gets to participate in the raid.
• Moving the Goalposts: Akatani tells Izuku he has two days to solve the riddle meant to find the location of his mom. Izuku solves it on time, but when Akatani finds out that Tsukauchi is with him, he tells Izuku that the deal is off because he brought the police, even though he never specified that Izuku should not call them.
• Mundane Made Awesome: Mei's Baby 12032 is a toaster. A flying, wireless toaster to be exact.
• Mythology Gag:
  • In canon, when Ochako finds out that Deku means "useless" and is meant to be an insult, she's surprised because she thought it was a diminutive of "dekiru" which means "you can do it!" In this fic, Izuku's dad calls him Dekiru.
  • As per canon, Izuku's training starts with cleaning up the garbage in the Municipal Beach Park.
  • In Izuku and Kiryu's first spar, Izuku tackles Kiryu right in the family jewels, just like the kidnapped boy did in one of Akiyama's Revelations in Yakuza 4.
  • Tsukauchi's quirk is called Judge Eyes.
  • The substory where Izuku meets Koichi Haimawari is called "Dreamers on the prowl".
  • After Izuku sees Pop*Step incorporate her leaping quirk in her dance routine, he's hit with a Revelation: the Essence of Hurdling! Looks like Majima isn't the only one inspired by street dancers.
  • Izuku's narration quotes the phrase "Not all men are born equal" both at the beginning of the fic and when the police do absolutely nothing to deal with Majima's "murder" and Inko's kidnapping because they are too busy with villains instead of major crime syndicates.
  • Izuku's Shadow Archetype is Mikumo Akatani, which was Izuku's name in the pilot of MHA.
  • When Izuku first hears the name Chisaki, he wonders why it fills him with dread.
  • A random tourist asks Izuku in English if he knows how to get to the station. Fortunately Izuku knows just enough English not to make a fool of himself.
  • Izuku's reaction to seeing Katsuki for the first time in almost ten years?
    Izuku: Yo... [grins like a loon] Kacchan!
  • After Izuku and All Might's first meeting where All Might articulates his reasons why he cannot in good consciousness tell Izuku that he can be a hero, Izuku thinks to himself that in any other circumstances, this would be a dream-crushing speech.
  • One of Izuku's Substories has him finding a baby in the trash and having to save his mother. The difference between this and the Yakuza 4 Substory is that instead of a nationalist gang, Izuku has to deal with a human trafficking ring.
  • Izuku compares the above situation to the coin locker babies he's heard of.
  • Izuku defending the maid cafe turns into the Dominatrix assist from Yakuza Kiwami 2, except that the one doing the stepping on is Izuku himself.
  • After Izuku makes it clear to Chisato's father that he is not a male escort, Chisato's father rips a page straight out of Ichiban's book and goes full dogeza.
    Chisato's father: Please... ACCEPT MY HUMBLEST APOLOGIES!
  • Saya gives Izuku a bunny hair clip when dressing him up as a maid, referencing his canon (and more often fanon) self's bunny motif.
  • Akatani says that UA was his first choice in high school and he fully believed he would get in, but he also applied for other places because he had to consider "what's realistic", as he's quirkless. This is the advice that All Might gives to Izuku in the manga.
• The Nicknamer: Izuku. Usually he goes for crude ones to deal with people he's pissed at, or overly cutesy ones such as Ii-chan or Kacchan. He has a couple that are a bit more mean-spirited for those he means to tease or annoy - like Hobo-sensei for Aizawa or Ass-Slapper for Ochako (referencing an Accidental Pervert moment).
• Nightmare Sequence: If a featured dream isn't a Flashback Nightmare, it's this trope.
  • Izuku has a dream of Bakugou in the form of a giant raging pomeranian throwing all sorts of hurtful insults at him before mauling him.
  • Bakugou constantly dreams of Izuku choking him to death while mocking him after the Battle Trials.
• No, You: The resulting discussion after All Might remarks that Izuku had an eventful year.
  Izuku: Yeah, what can I say. I'm an eventful guy.
  All Might: That makes no sense.
  Izuku: You make no sense.
  All Might: Very mature.
• Noodle Incident:
  • Izuku did something that really pissed off Death Arms. Apparently it has something to do with a villain fight.
  • Why is Majima's Sitcom Arch-Nemesis Mitsuki of all people? We don't know.
  • Mei apparently made a zombie virus once. Izuku mentions having to destroy all the samples.
• "Not So Different" Remark:
  • Akatani tells Izuku that the two of them are more similar than he thinks, because they're both quirkless people that wanted to be heroes.
  • When All Might describes to Izuku the incident that led to his injuries, Izuku recognizes in his voice the same anger that he feels whenever he thinks about Akatani manipulating him; aka being angry at one's own self for their failures.
• O.C. Stand-in:
  • Hisashi Midoriya, who was never seen in canon, plays a major role here; while he's never around in person, being a scientist on I-Island, he is very present in Izuku's life and helps him lie to the police that he has a quirk.
  • The first Arc Villain is Izuku's Pilot version, Mikumo Akatani.
• Oddly Common Rarity: Even though the global quirkless population is at 20% (which in numbers isn't all that small but still a minority, and ever decreasing), it's stated that most of Okinawa's population (aka at least 50%) is Quirkless. In particular, prior to going to Okinawa, the only Quirkless person Izuku knew other than himself was Majima. In the Morning Glory orphanage, everyone is Quirkless.
• Oh, and X Dies: The title of the chapter "Spoiler Alert: Katsuki Bakugo Fucking Dies". He doesn't actually die, Izuku just uses that hold Majima has that looks like he snapped someone's neck. But it sure looked like he died, to the absolute horror of the rest of 1-A.
• Once Done, Never Forgotten: Izuku is thought of as something of a Memetic Psychopath In-Universe amongst those affiliated with the UA because of the time he used Majima's Neck Snap Heat Action on Katsuki. Whenever anyone ponders or brings Izuku's character into doubt, the neck snap is the one thing they talk about. Even All Might questions Izuku's character over that takedown.
• One Degree of Separation: Musufatu and Kamurocho must be tiny because there is no other explanation for this. Through his connection to Majima, Izuku knows just about everyone Majima does. This includes Kiryu, Saejima, and Akiyama. Through his job with Akiyama, Izuku somehow gets involved with the Magatsume family and the Yagami Detective Agency, is given Ichiban's copy of Dragon Quest III as a bribe, gets in fights with the Keihin gang, and meets Midnight who is his future art history teacher. Oh, and Midnight herself? She went to school with Chisaki Kai and Mikumo Akatani of all people. And she's dating the latter. Reminder that the latter kidnapped Izuku's mom and used to work for Kurosawa, who really fucking hated Izuku's dad and grandfather. Oh, but there is more! The boyfriend? One omake implies (unclear if it's canon or not) that he met Ichiban while in jail. Hold on, not done yet. The Majima Construction company built the batting cages with funding from the Yaoyorozu clan (yes, the same as Momo Yaoyorozu), who became Izuku's classmate years later, and they also built UA's Unforeseen Simulation Joint. They won that contract in competition to the construction company Ochako's parents run, which means that Izuku's uncle is indirectly responsible for the poor financial state Izuku's classmate has years later. And all this is only a fragment of the connections in this fic.
• Original Character:
  • Musashi Midoriya; Izuku's grandfather and the Patriarch of the Midoriya Family, as well as Omi's God of War. While he's long since been a Posthumous Character by the start of the fic, his legacy still lingers over his descendants.
  • One of the clients of Sky Finance is one Rio Suzuki, cousin of Yuki from Yakuza 0.
• Painting the Medium:
  • Whenever the fic uses Boss Subtitles or announcing a Heat Move, there is a line break, followed by the the name of the enemy/Heat Move in a bolded style (like Pokochin-Sama or [!]Heat Move: Essence of Blindside) followed by a second line break before resuming to the regular narration. The purpose of this is to emulate Yakuza's visual style of encounters as much as possible.
  • All Might's speech when in his powered form is always rendered in bold letters.
• Patchwork Kids: Majima finds it a bit disturbing what a perfect blend of his parents Izuku is. For the record, Izuku looks exactly like his dad (down to the diamond shape of his freckles) but with his mom's coloring.
• Penny Among Diamonds: As part of Izuku and Chisato's Boyfriend Bluff scheme, Izuku has to attend a party full of rich people without immediately giving away that he's middle class. He purposefully avoids the Old Money elderly man because he's sure he'll smell the middle class in Izuku from a mile away.
• Pet the Dog: Surprisingly, Sagawa, despite being basically Majima's slave owner, has no issue with Majima taking in Hisashi and Inko, and even saved their lives when the Midoriya Family went after them.
• Plaster Cast Doodling: After Izuku walks into class with a broken arm in a plaster cast after USJ, he tells everyone that this is their chance to doodle on it.
• Pocket Protector: When Izuku takes the bullet for Akatani, it's Nishiki's lighter in his chest pocket that saves his life.
• Power Glows: Heat is visible as some kind of flame/light/aura emitting from the skin. It's why Aizawa initially mistakes it for an emitter quirk.
• Power Misidentification:
  • Akatani's Heat Essence move completely terrorizes his opponent. When Izuku is under its effect for the first time, he spends a few days thinking it was a fear quirk.
  • Izuku and Hisashi lie to the police commissioner that his Heat is a Quirk and he had a forced Quirk awakening due to the adrenaline rush. He buys it because of the technobabble, even though it's noted to be total bullshit.
• The Promise:
  • Majima swore to Musashi Midoriya that he will look after his son Hisashi if anything happens to him and will make sure he never joins the Yakuza.
  • After faking his death, Kiryu tells Izuku that if he wants to thank him, then he should become the world's greatest Hero and have fun doing it. Izuku promises that he will.
• Punny Name:
  • Izuku's middle school teacher is named Subarashii, which means "amazing". Ironically, he's depicted as way too tired of Izuku's shit.
  • The Aoi family has blue hair.
• Put on a Bus:
  • Izuku doesn't see Katsuki at all in the nine or ten years between starting training with his uncle and the starting point of the MHA manga.
  • Tsukauchi is put on a bus after he gets kicked out of the 4th Division for participating in the Millennium Tower raid. He comes back after the USJ.
  • Kiryu was never THAT present in the fic but he fakes his death and cuts contact with everyone, so...
  • Majima vanishes a year prior to Izuku going to UA, coinciding with the events of Judgment.
• The Real Heroes: All Might states that even though people make fun of the police, they're the ones who put the villains behind bars so they're the ones who are making the actual difference in fighting crime.
• Reality Is Unrealistic: Discussed after Izuku's team's victory in the first battle exercise. As Yaoyorozu and a few others explain, media such as movies like to place the villain doing the classic Evil Gloating trope in front of the weapon of mass destruction before the hero, while this isn't how these situations go in reality at all. However, Izuku in his plan took full advantage of this expectation set by the media to lure Katsuki and Ochako in his trap.
• Red Baron: Aside from the canonical examples of "Dragon of Dojima" and "Mad Dog of Shimano", we have:
  • Izuku as the "Mad Dog of Shizuoka", after he goes viral online for cackling like a madman while beating down the Yamikumo clan in Shinpu Castle.
  • Izuku's grandfather Musashi Midoriya was known as "Omi's God of War" in his heyday.
• Refusal of the Call: When All Might offers One For All to Izuku, Izuku turns him down because he has practiced his whole life to become the first Quirkless hero and promised as such to many people who helped him.
• Rescue Arc: The Akatani arc is basically Izuku rushing to save his mom from the Omi Alliance.
• Retired Outlaw: After Daigo took over the Tojo clan, his mother who was the acting chairwoman retired to a small apartment across the street from Izuku.
• The Reveal: When Izuku takes down Akatani, Akatani tells him and Tsukauchi to check his gun... and it's loaded with rubber bullets. Inko is still alive.
• Riddle Me This: Akatani gives Izuku riddles to figure out different locations. The second time he does that Izuku tells him to cut the bullshit.
• The Rival: Enforced! Izuku keeps hounding Katsuki "Majima Everywhere"-style in order to piss him off so they can fight and have Katsuki's skills improve because he wants a rival who can keep up with him. Katsuki is horrified at the insanity.
• Romantic Spoonfeeding: Lampshaded and subverted when Ochako notes that for two people who claim to be entirely platonic, Izuku feeding Mei (who is busy tinkering) is the most romantic shit she has ever seen. Straight out of a Shoujo manga.
• Rule of Symbolism: Discussed. Izuku thinks to himself that he never thought too deeply about what his uncle's Hannya tattoo meant until found out he's Yakuza, but now he knows; it's the complexity of human emotion, and now for the first time Izuku is able to understand how it applies to Majima.
• Running Gag:
  • Izuku insulting people with vulgar and sexual nicknames, such as "penis".
  • Whenever an unusual situation happens, expect something along the lines of "most people would do this. [insert name here] was not most people."
  • Izuku running into Chinpoko-chan, Oshiri-chan, and Kogan-chan at the most random moments and beating the crap out of them in seconds. The gag comes to an end when he runs into them while rushing to save his mom from her kidnapper and they waste him what could be precious time. This is the last time they're seen.
  • Everyone thinking that Izuku's hero suit looks like it came out of a Yakuza Sunset movie.
• Sadistic Choice: Kurosawa gives Majima two options. The first is combined with Morton's Fork; Majima has to fight his sworn brother; if Majima wins, then he has to kill Saejima and then Kurosawa's men will kill him. In exchange, everybody else gets to live for now. If Saejima wins, Kurosawa will kill Majima, Inko, and Izuku and will pin their deaths on Saejima's pre-existing eighteen counts. Option two is Majima not fighting, but then Haruka will be killed in front of tens of thousands of people.
• Save the Villain: Conversed. Izuku, back when he was five, was very confused about why the hero in a movie he was watching would save the bad guys, after which Majima and Inko sat him down and had a serious discussion about the morality behind it and how even villains can have positive traits.
• Scare 'Em Straight:
  • Inverted with Majima and Hisashi's first meeting. Hisashi, who was a child at the time, gives Majima the riot act over dropping a cigarette butt on the pavement and then goes on to lecture the older man on the importance of picking up and separating your trash for the sake of environmental preservation. Majima is so shaken by the idea that the whole city's discarded cigarette butts and all other toxic shit end up in the water supply that he strongly adheres to those principles for the rest of his life. And even more so when Hisashi starts yelling about the shrinking rainforests. The poor man leaves the conversation thinking that the world is going to end because of littering.
    Majima: (thinking) This must be pretty important to him. And if half of what he's sayin' is true, it oughta be pretty important to me too. I'm too damn young for the world to end!
  • Izuku beat the crap out of a group of delinquents who were littering the beach park and scared them so badly that the delinquents started calling out everyone else who littered.
• Screw the Rules, I'm Doing What's Right!: Tsukauchi goes against all police regulation to help Izuku take on the Yamikumo family (and then save his mother) because standard police procedure would take days when they only have hours, and Izuku would go to take them all on anyway. He gets kicked out of the fourth division and demoted for his trouble, and he's surprised he's not kicked out of the police entirely and facing a prison sentence.
• Secret-Keeper: Izuku is the only one who knows that Kiryu faked his death because he ran into him in the train station after the fact.
• Selective Obliviousness:
  • Izuku has seen Majima's Hanya tattoo. He never actually thought about what it really meant. This reaches crazy levels when the news identify Majima as the Patriarch of the Majima family, and Izuku spends a week in denial that this is the same person that trained him how to be a hero and that his uncle can't be a criminal and that this is all a big prank.
  • Neito in his internal monologue brags about his refusal to keep up with the news in exchange for keeping up with everything hero-related.
• Self-Deprecation: This line from Izuku, along with Leaning on the Fourth Wall.
  Izuku: Yeah, it's like some hack author for a story decided to cut an entire series of interactions that should have happened four years ago, because he wanted to rush over to the next arc.
• Shadow Archetype: Mikumo Akatani is this to Izuku. Mikumo, other than quite literally being the beta version of Izuku, in this universe is also quirkless, he was also dependent on his mother whom he adored, had very few friends because of his quirklessness, and tried for the UA Entrance exam. Except that he failed, and this pushed him to join the Yakuza and rise through the ranks. The main reason he pursues Izuku is to see if Izuku has what it takes, by pretending to kill Izuku's mom to force him into the same situation he once was in.
• Shell-Shocked Veteran: Though Izuku tries his best to hide it, he still has intense PTSD from the entire Akatani arc, which he masks under his "Mad Dog" persona.
• Shipper on Deck: Mei's parents really want her and Izuku to get together.
• Shockingly Expensive Bill: Majima teases Inko about all the times back when she was a kid and emptied his wallet with her big appetite. One of said bills came at 200,000 yen, by the way. By today's conversion rate that's over 1,300 dollars. That's more than most people's monthly salary.
• Shout-Out:
  • "But for now, yer gonna be a friendly neighborhood hero and stat gettin' this place cleaned up."
  • At one point Majima takes off with a speed that "would make a certain blue hedgehog jealous".
  • Musashi describes the gang he joined as a kid as a pseudo-Neverland made up of kids that ran from home.
  • Majima calls Inko's quirk Attraction of Small Objects "Jedi Force shit".
  • Inko constantly quotes The Analects of Confucius to win arguments. She did that ever since she was a kid.
  • Izuku is a fan of JoJo's Bizarre Adventure.
  • Izuku wonders if Akatani's lawyer who managed to get the court to drop most charges on him was Ryuichi Naruhodo.
  • When Akiyama asks the Florist if he can find some info, the Florists response is "Who the hell do you think I am?"
  • The Florist praises Izuku's footage analysis skills by comparing him to Detective Conan.
  • Chisato's very much unwanted suitor is a still young but significantly older crass brown-haired dude in a white suit named Sugimura who's only after her money.
  • When Shigaraki asks Izuku who the hell he is, Izuku replies "Haven't You Heard? I'm Sakamoto". Shigaraki is not impressed.
  • Izuku announces to his entire year that he, Izuku Midoriya, has a dream!
• Show Within a Show: The Yakuza Sunset movie series. The first two even have Kiwami remakes.
• Someday This Will Come in Handy: Hisashi taught Izuku JSL because he figured that at some point in his Hero career, Izuku will have to talk with deaf people. It does come in handy, but not quite in the way either of them expected; Izuku uses sign language to tell Hisashi to lie to the police about Izuku having a quirk without the Chief catching on to the conversation.
• Spared by the Adaptation: Mirei Park never dies in this fic.
• Speed Echoes: Yes, Goro Majima is THAT fast. Without a quirk. Which Izuku finds out the hard way when he has to fight him on the Millennium Tower.
• Spoiler Title:
  • The "Mad Dog of Shizuoka" bit definitely implies that something big will happen in Shizuoka. It's where Izuku gets caught on camera beating down most of the Yamikumo clan members.
  • The chapter "Good Days, Gone" features a Wham Line at the end of the chapter.
• Spotting the Thread: Aizawa realizes there's something off with Izuku's "quirk" when he tries Erasing it during the physical, and the Heat remains unaffected.
• Stalker with a Crush: Chisato apparently stalks Izuku as she's in love with him, and thinks that "Kacchan" is someone Izuku is "cheating" on her with.
• Stance System: Izuku develops his own stance system based on the stances of the people who trained him, each with their own Heat Moves.
  • Scrapper Style is a style inspired mostly by Majima and Kiryu which focuses on unarmed combat against multiple opponents and allows for the brief use of improvised weapons. The Heat glows blue with green accents when he uses it and it's Izuku's most frequently used style.
  • Armsmaster Style is entirely inspired by Taiga, Tetsuo, and Death Arms, and is entirely focused on armed combat with a generous use of Improvised Weapons. Izuku's Heat glows yellow when he uses it.
• Start of Darkness: Mikumo was already gloomy and miserable in middle school with a grand total of three friends (one of whom treated him like shit), so when he failed to enter UA, his mother died, and those friends vanished from his life, that was the breaking point.
• The Stations of the Canon: Despite this being a crossover, the overall events from both sides of the crossover follow canon.
• Strong Family Resemblance: The Midoriyas, big time. Izuku looks like a carbon copy of his father Hisashi with his mother's color palette, and Hisashi looks like a copy of his own father Musashi. At one point when Yuya mistakes Izuku for him mom.
• Storming the Castle:
  • Akatani hides in Tokugawa's Castle. Subverted in that all the goons are outside, and only the Arc Villain is in there.
  • And then he along with Saejima storm Millennium Tower the very next day.
• Successful Sibling Syndrome: A cousin variant. One of Akiyama's clients, who has a side quest devoted to her, is Rio Suzuki, the younger cousin of Yuki of Four Shine fame. Yuki looks twenty when she's fifty and has a consistently extremely successful career in the host industry ever since she entered the workforce. Rio's parents just won't stop singing Yuki's praises to Rio. Meanwhile, Rio is in her thirties, single, has a very plain appearance and the only noteworthy thing about her is her bad credit which literally got her laughed out of a bank when she tried to get a loan to open a business. She laments that her parents keep asking her why she can't be as successful as her cousin and that even Nemuri's ex-con boyfriend has more to bring to the table than her.
• Suspiciously Specific Denial:
  • Izuku most definitely did not scream like a little girl when he first met Mei. Not at all.
  • Lampshaded with one of Mei's inventions for Izuku, the not-shotgun.
    Ochako: Wait, is that a gun?
    Izuku: For legal reasons, when you refer to it, we'd rather you call it Baby 1115109131.
  • Izuku totally said "Unforseen Simulation Joint" and not "Universal Studios Japan", what are you talking about Hobo-sensei?
• Taking the Bullet: After Akatani helps stop the plot to kill Haruka and Inko, Kurosawa shoots him. Izuku lunges and takes the bullet.
• Technician Versus Performer: Izuku realizes that the issue with Pop*Step's show is that while her singing is technically on point and her dancing looks professional, she doesn't put any real spirit into her performance, which leaves it bland.
• Tell Me About My Father: About the grandfather, in this case. After Izuku defeats Kurosawa, he demands from Hisashi to finally talk to him about grandpa Musashi, as he just found out from a guy who tried to kill him that his grandfather was in the Yakuza and he's tired of being kept in the dark.
• Tender Tears: Saejima of all people is crying while singing "Bakamitai" at the karaoke. Majima and Izuku just let him get it all out.
• "The Reason You Suck" Speech: Aizawa gives an absolutely brutal one to Katsuki after reviewing the results of the first battle trial.
  Aizawa: Bakugou, what you did was the height of idiocy. You fell for an obvious trap, split away from your partner, gave in to childish provocation, and on top of all that, you lost. If this hadn't been an exercise, you would've gotten not only you and your partner killed, but an entire district in Tokyo may very well have been wiped off the map. All for your ego. Do not let it happen again.
• Time Skip: The fic takes place over the course of several years, starting with Izuku at age 4, and then skipping one or two gears at the time, accordingly to major events in his life.
• Title Drop:
  • The "Mad Dog of Shizuoka" part of the title gets dropped in the story quite a few times after a video of Izuku fighting the Yamikumo goons in Tokugawa's castle goes viral.
  • The chapter where Izuku fights his uncle Majima is called "Like A Demon", which is how Izuku declares he will fight.
• Totally Radical: Dropped by All Might.
  All Might: As you youngsters say, [later dude]!
• Training from Hell: Namedropped. Neither Majima nor any of his acquaintances have any idea what a "normal" training regime is like, so Izuku is treated to things such as Majima chasing him around the trash heap beach in full "mad dog" mode or Kiryu shooting him with rubber bullets to improve his reflexes. At many points, Izuku questions the sanity of his various male role models. Kiryu's justification for all this is that it's pressure that makes diamonds.
• Trauma Button:
  • For Izuku, it's being called "useless" or a "puppet", and generally feeling helpless. It stems from Katsuki's old "Deku" nickname (which translates to those things) but gets much, much worse after Akatani kidnaps his mom and strings him along.
  • Another one of Izuku's buttons is Katsuki, who came up with the Deku nickname. While he never shows it in person, the bullying he received from him screwed him for life, even though it takes over ten years for them to meet again.
  • Akatani hates talking about the UA.
• Traumatic Superpower Awakening: Averted and exploited. In reality, trauma or high-adrenaline scenarios cannot activate quirks because they simply don't work that way. But Hisashi and Izuku take advantage of Hisashi's status as THE expert and the Police Chief's ignorance on the subject to fool him into thinking that's possible.
• Trolling Creator: In-Universe. It's strongly implied that the Geddit (read: Reddit) user "UA_Rat", who is known for giving not entirely accurate info about the current on-goings in UA, is Nezu posing as a random fan who deliberately gives fake info among the true bits to keep people's interest engaged without arousing suspicion.
• Uncertain Doom: The last time Majima saw anyone from the Midoriya family not named Hisashi was when Sagawa and his clan declared that they would "take care" of its Patriarch Hyosuke Serizawa. It's unclear what exactly happened to them.
• Verbal Tic: Izuku is completely baffled by Chief Tsuragamae's habit of barking at the end of his sentences.
• Villainous Fashion Sense: A subversion since Izuku is not a villain, but everyone notices that Izuku dresses well... basically like a Yakuza character. Between his everyday wear being a stereotypical thug jacket with a demon that literally tells people to pick a fight with him, the golden chain that every yakuza recruit in town wears, and his hero costume being a Hellbent For Leather suit with steel-toe shoes, it's no wonder people are weary even after they get to know him. He even slicks back his hair when in the suit.
• Weirdness Magnet: Izuku is a Yakuza protag in a City of Adventure. Whether it's a cooking show host, a trafficking ring, a chicken cult, or an idol looking for advice, Izuku finds himself in the middle of all kinds of situations.
• "Well Done, Son" Guy:
  • Tsukauchi is absolutely terrified of disappointing his mother in any capacity, to the point that he begs Izuku to pretend to be his adopted kid in front of his mother so she's not disappointed that he has no family yet at 29. His mom sees through it right away but she's not disappointed in her son in the slightest.
  • Akatani admits that if his mother was still alive he would not be doing any of the shit he's doing now, or at least he would never tell her. He's even ashamed to visit her grave.
• Wham Line:
  • Chapter 14 is about Izuku going through his day helping out random people on the street and then watching a show with his mom. After the show is over they switch channels, and...
    -ain, our top story is the Sapporo shooting incident early yesterday morning. Hokkaido Police have determined... The victim was a senior member of Kanto's organized crime syndicate, The Tojo Clan. He's been identified as Goro Majima. Given the victim's status as a member of the largest quirkless crime syndicate in Kanto-
  • The reveal of Katsuki's sparring partner prior to the UA Sports Festival, as rendered by the Boss Subtitles: Tatsuya Ukyo.
• Whole Episode Flashback:
  • The "Majima Saga" chapters cover the story of how Majima came to care for Hisashi and Inko, becoming their honorary big brother. Also overlaps with How Dad Met Mom.
  • The chapters where Izuku is relaying to All Might all the hijinks he got into within a year.
• The Worf Effect: Since Yakuza in large part operates on Asskicking Leads to Leadership, when Izuku kicks a lieutenant's ass in a few seconds, the goons working under him run for the hills. Izuku is all too eager to point it out.
  Izuku: So if I could do this to [the lieutenant] so quickly... Just imagine what I could do to you.
• Workaholic: Mei is so focused on her work that Izuku has to physically carry her to the UA cafeteria and spoon-feed her her lunch while she's working because she won't remove her hands from her "babies" on her own accord. It takes a turn for the tragic when Izuku gets injured in the USJ, and Mei works herself to the bone because she thinks it's all her fault for not making good enough gadgets.
• The World Mocks Your Loss: After Majima divorces Mirei, he just can't stop hearing people on the street singing her praises as the next big idol in the industry.
• Wrench Wench: Mei, as per canon. Since Izuku met her earlier in the timeline, he relies on her for equipment exclusively, to the point he doesn't request support items from UA (unlike literally every other student ever) because he goes straight to her. He also helps her test her "babies".
• Wrestler in All of Us: One of Kiryu's kids is a huge wrestling fan and hooked Izuku into it as well, so now Izuku incorporates a lot of wrestling moves into his unarmed combat style.
• Wretched Hive: Kamurocho as per canon. And according to Majima, Sotenbori isn't all that different; whether you want sex, cash, or booze, everything is right by the corner.
• Year X: The fic never clarifies the exact year, instead giving rough dates such as "198X" or "201X". If they ever need to clarify how many years exactly have passed between one event and the next, it's clarified in the narration in some fashion, but exact dates are never given.
• Yearning for a Nemesis: The reason Izuku starts hounding Katsuki "Majima Everywhere"-style.
  Izuku: I'm looking for a challenge Kacchan. A good one. A consistent one. And I picked you for that challenge. For better or worse, I picked you. And so, I'm gonna take responsibility. I'm gonna make you a worthy opponent. Someone who can keep up with me.
• You Remind Me of X: Tatsuya Ukyo reminds Katsuki of Izuku so strongly that Katsuki remarks that even the way they talk sounds similar. Which is why Katsuki seeks training from him.

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