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Our story begins with our hero, the Kizuna Red Ranger Togo Asagaki, battling the nefarious Breakup King. The odds are stacked against him and he knows he won't make it out alive, but he takes solace in knowing that the friends and world he loves so much are safe. But as his life flashes before his eyes, he's knocked out of his stupor when he falls on his head in the middle of an ancient ruin. Lost in this fantasy world with no one else in sight, Red searches for a way home, using his powers to become an adventurer who defends the innocent!

Six months later, a down-on-her-luck wizard named Idora Alvorn doesn't have the money she needs to hire an A-rank adventurer to help her in her research. After countless B-rank adventurers try and fail to overcome her test, who else barges in but the Kizuna Red Ranger himself, who proceeds to make a mess of Idora's property with his inexplicable ability to make things explode without magic.

And so the paths of the Red Ranger and grand wizard girl intertwine in this exciting story straight out of a Sunday morning cartoon!

So say it with us now, BANSOU-CHANGE!

The Red Ranger Becomes an Adventurer In Another World (Sentai Red ga Isekai de Boukensha ni Naru) is a manga written and illustrated by Koyoshi Nakayoshi, which began serialization in Monthly Shonen Gangan in the fall of 2020.


Provides examples of:

  • Accidental Proposal: When Idora pricks her ring finger on a cactus, Red uses his powers to produce a band-aid to keep the wound clean. He's unaware of her flustered reaction to this and thinks nothing of it until later on, where Rosie points out that in this world, few people have the funds for precious metal or jeweled bands. As such, proposals are often made with any kind of ring-shaped object... like that band-aid Red put on. He then tells Red to "take responsibility" and ask for Poseidon's blessing for Idora's hand in marriage. Red, now thoroughly aware of the implications and Poseidon's likely reaction, tries to get Idora to take it off already, only for her to preserve it with magic so she can wear it like an actual ring.
  • Affectionate Parody: Of stock Toku heroes, the Stock Shōnen Hero, and the Trapped in Another World genre. Red plays all of the sentai tropes incredibly straight, but they don't always mesh well in a fantasy setting. For instance, summoning your Humongous Mecha in a tiny cave means that it simply can't move inside such a cramped space.
  • Always Chaotic Evil: The members of Demon Queen's Clan have zero empathy for anyone besides their own kin, gleefully manipulating and killing humans as they please and rebuffing any and all attempts at finding common ground. Their parent species, the Finalis Dominus, aren't much better.
  • Anti-Climax: After defeating the Breakup King, Red is dying and reminisces on the good times he had with his friends while hoping that the world is saved... then he hits his head and sits up injury-free in another world.
  • Artifact of Doom: The seemingly parasitic Seeds of Magic, which embed themselves into a user in exchange for powerful magic, only to eventually transform the user into a gruesome monster. Teltina is working to rid the world of them and believes (at least initially) that Shauha is behind their spread. It turns out they're being spread by the demon lord's children for the purpose of creating enough suffering in the world to unseal the demon lord.
  • Back-to-Back Badasses: Double Subverted. When pitted against a monster who can always appear in someone's blind spots, Teltina proposes fighting with Rosie behind him. Idora quickly points out all the problems with this, namely that Rosie is completely unwilling and unable to cooperate with Red along with the fact that anyone behind Red would get scorched by the explosion of his Transformation Sequence. It takes an off-screen Training Montage and Teltina bribing Rosie with a Lap Pillow to get it to work out.
  • Badass Crew: The Kizuna Five are a bunch of Super Sentai expies who battled the Relationship Enders. They fought off entire armies worth of foes where the Mooks are as tough as high-level monsters in Idora's world. They also have a BFG and a Humongous Mecha that run on The Power of Friendship.
  • Bathtub Bonding: Idora and Teltina spend a scene bathing in a natural hot spring outside Akarina. During this time, Idora asks why Teltina sought her out, with the latter revealing that she's been reading Idora's reports and has admired her tireless efforts to improve people's lives with magic.
  • Better than a Bare Bulb: Due to having no frame of reference for the absurdities of Sentai series, the other characters, especially Idora, frequently complain about Red's obnoxiously flashy weapons, absurd powers that make no sense, and brightly colored spandex that just looks weird in the fantasy setting the story takes place in. Red is, for the most part, either oblivious to or somewhat confused by these complaints due to a severe case of Culture Clash. All of it is Played for Laughs, of course.
  • Big Damn Heroes: Chapter 25 sees the party fighting an extremely powerful enemy that can make seemingly infinite copies of herself. Red's Berserk Form barely defeats them, when it's revealed that several copies were left outside the city as backup. The party is exhausted and in no shape for another battle, when Amun arrives on the scene, ramming into the enemy on her motorcycle
    Ranya: Sorry for making you wait, everyone!
  • "Blind Idiot" Translation: The official translation in the MangaUp! app can have some spotty and overly literal translations involving names. Rosie's name is translated as "Lowji", completely missing his rose-based Flower Motif.
  • Both Sides Have a Point: Upon the reveal that Shauha isn't an Evil Sorcerer but simply a Jerkass (but extremely competent) bureaucrat, Red comes to this conclusion about her and Idora's goals. On one hand, Shauha's decision to limit the development and research of magic and magic items to a specially licensed few makes sense, as people from his world had to earn similar licenses to handle dangerous substances and equipment (such as drivers licenses to operate a motor vehicle, or a license to become a pharmacist or doctor). On the other, Red agrees with Idora's assertion that Shauha's restrictions are too severe, as low-risk magic items could be handled safely if people are simply instructed how to use them. It's for this reason that Red suggests Idora try to change Shauha's mind so they can work together to achieve both of their goals of improving safety and increasing the positive impact of magic.
  • Brick Joke: At the beginning of the second chapter, the guild manager tells Red and Idora to do whatever they're doing at home after Idora ends up straddling him in public. At the end of the chapter, Red transforms to get away from her needle, prompting the same response from the guild manager.
  • Bunny-Ears Lawyer:
    • Red and Rosie are two of the most powerful human fighters Idora's world has ever known. But they're a Hot-Blooded Stock Shōnen Hero Genre Refugee Love Freak and a Hero with an F in Good with an intense Bodyguard Crush respectively. When they're not kicking ass they're baffling the people around them with their behavior.
    • The original Hero's Party consisted of three otherworlders, including a skirt-chasing archaeologist, a beautiful fortune teller who constantly recited people's fates to them, and a Mad Scientist eager to experiment on everything in sight. Despite this, they changed Idora's world for the better and successfully defeated the Demon Lord a thousand years before the events of the story.
  • Call-Back: Chapter 17 has Fou, in Red's backstory, getting annoyed with Red because the end-of-battle explosion blew up the eyes of the monster they were fighting. Back in the first chapter, Red mentioned the frequent destruction of drop items as one of the reasons he wasn't a higher ranked- or at least, better paid- adventurer.
  • Cerebus Syndrome: After being almost non-stop gags throughout the first five chapters, Chapter 6 marks a turning point in the story as the Demon Lord's clan is introduced, with Abu Dhabi thrashing both Red and Rosie while turning all of Akarina into monsters. Abu Dhabi's Evil Gloating also triggers painful memories for Red, who enters a state of Unstoppable Rage and gets a severe power boost as his costume turns black and cracks appear all over it.
  • Colony Drop: When Lurguat is defeated, the Seed of Magic in his body goes berserk, turning him into a spherical mass of flesh large enough to flatten a city as large as Akarina. It takes the Maximum Kizuna Kaiser pushing it into space to avert this disaster.
  • Color-Coded for Your Convenience: The Kizuna Five have hair or outfit colors that match their color. Red, for instance, has blazing red hair and eyes.
  • Common Tongue: Despite arriving in an entirely different world than his own, Red has no problems with communication and quickly becomes a B-Rank adventurer in six months. Then it's subverted later on when it's revealed that Red's Transformation Trinket has a Translator Microbes function.
  • Convection, Schmonvection: Red uses Spin to Deflect Stuff to divert the fire from the dragon's Breath Weapon away from him and Idora. Neither of them get burned even though they're currently surrounded by fire.
  • Cool Versus Awesome: Irritated by Red's overly friendly impertinence and lack of decorum towards Princess Teltina (as well as his animosity towards anything that can interrupt his alone time with Teltina), Rosie challenges Red to a duel for the right to travel with her and aid her on her quest to destroy the Seeds of Magic, a challenge Red takes him up on. And so begins a fight between a Hot-Blooded Toku hero and a classic Japanese RPG hero with their best gear in a continually escalating fight that ends with Red sending Rosie flying with the wind from the Great Kizuna Sword.
  • CPR: Clean, Pretty, Reliable: Idora resuscitates Red with CPR after he's knocked unconscious and falls into a river. It works without a hitch, and Idora's only concern is that she had to give up her First Kiss to him to do it.
  • Culture Clash:
    • Red's Hot-Blooded sensibilities, Henshin Hero powers, and Humongous Mecha are out of place in the fantasy world Idora lives in, and anyone who sees him is either dumbstruck or mesmerized by what they're watching. His casualness also clashes with the stuffy class hierarchies of commoners and nobles, pissing off Princess Teltina's Crazy Jealous Guy bodyguard when Red fails to show Teltina proper respect.
    • On a more humorous note, Red's sentai uniform is a hit with kids in his world, who all gush about how cool it and by extension Red is. In Idora's world, it's considered weird and tacky, to the point that Idora can hardly believe that any kid would like it if they weren't brainwashed. Rosie also taunts Red for this during their duel, sarcastically asking if Red is a clown when he sees it.
    • Inverted when discussing Shauha's widespread restrictions on the use of magic. After speaking with her, Red admits that he can see the logic in her actions, as the licenses she requires to pursue the research and development of magic are not far removed from the drivers' and doctors' licenses from his own world. But he does agree with Idora that Shauha's regulation is too widespread and severe, as people don't need a license to use a cooking knife.
  • Cuteness Proximity: Red and Idora coo over Teltina's privilege magic, Vrykolakas, rubbing it all over and gushing over how fluffy and nice-smelling it is.
  • Dragon Hoard: While exploring the Ruins of Wakenark in search of mana-metal, Red and Idora find it piled in a heap at the end of a cave. This comes across as odd to Idora, as it normally spouts from the earth like a frozen fountain. She realizes why this is the case when an ancient dragon tries to swat both her and Red, revealing the mound to be its hoard.
  • Dual Wielding: Kizuna Blue is seen wielding twin swords in a reverse grip in the brief handful of panels he's on-screen. Kizuna Yellow is also seen wielding twin sickles connected by a chain.
  • Ear Cleaning: To get Rosie to cooperate with Red and fight as Back-to-Back Badasses, Teltina promises to give Rosie a lap pillow along with an ear cleaning. Rosie quickly agrees.
  • Early-Bird Cameo: When Red performs his Heroic Sacrifice in the first chapter, and is in the process of getting transported to this new world, we see flashes of memories of his life up until that point with lots of emphasis on the Kizuna Five... but one of those memories is of a Silver Kizuna warrior. Silver later becomes a much bigger plot point.
  • Even the Loving Hero Has Hated Ones: Chapter 15 reveals that even Red is reluctant to try and bond with Professor Betrayis, The Quisling Mad Scientist who helped build many of the most powerful weapons the Breakup King used to try and kill the Kizuna Five. Despite all the hints to the contrary, Red continues to try and rationalize that "the Professor" could be anyone else and cringes while mulling over the thought. Red later specifies that while the other executives of the Relationship Enders could at least be made to understand what bonds are, Betrayis made people suffer For Science! and cares for no one but himself.
  • Exactly What It Says on the Tin: The story is exactly what it sounds like: an isekai about a Hot-Blooded Red Ranger who ends up trapped in a fantasy world after the final climactic battle with the Rangers' enemies, and uses his Ranger powers to become an adventurer while he looks for a way home - much to the confusion of the otherworld's residents, who have absolutely no context for sentai heroes or their powers.
  • Everyone Is a Super: Although few people possess the talent to become wizards in Idora's world, most people are at least able to use body strengthening magic, allowing them to perform superhuman feats of strength to aid in being laborers or warriors. Ironically, it is because Rosie is a subversion of this trope that he's able to become the Hero- since he isn't super, the sword he wields can't drain him of power he doesn't have.
  • Fantastic Racism:
    • Magical power is everything when it comes your status as an adventurer, wizard, or noble, and being an Un-Sorcerer is enough a reason to be ostracized and have rocks thrown at you. While Red sidesteps this due to his seemingly magical Henshin Hero powers, Rosie isn't so lucky and spent his entire life up to meeting Teltina living in bitter loneliness and squalor despite his prowess as a Badass Normal.
    • There is heavy racial tensions between humans and Demi-Humans, with the two races being on the verge of war, something the Demon Lord's Clan is happy to take advantage of.
  • Female Gaze: In chapter 22, Idola defends Red's tight Ranger Outfit, saying that the tightness around the butt is the best part of the costume. Teltina is taken aback by this.
  • First-Name Basis: Flashbacks show that the Kizuna Five are close enough to call each other by their first names. Kizuna Yellow calls Red, "Togo" to get his attention because he's being unusually quiet around the newly christened Kizuna Silver.
  • Five-Man Band: Red's flashbacks present this dynamic among the Kizuna Five:
    • The Hero: Red is the Hot-Blooded leader and the one who gives his life to take down the Breakup King.
    • The Lancer: Kizuna Blue seems to be Red's Best Friend and their colors are diametrically opposed.
    • The Big Guy: Kizuna Green isn't seen using the weapons of his teammates, instead holding up two Mooks in a Neck Lift. Suitably enough, he's bigger and more muscular than any of his teammates.
    • The Smart Guy: Kizuna Yellow is seen lecturing Red about his study habits.
    • The Heart: Kizuna Pink shares a tender moment with Red while hanging up what appear to be good luck notes for a festival like Tanebata.
    • Sixth Ranger: In addition to the Kizuna Five, there is also a Kizuna Silver, nicknamed "Sil". According to Red, she is so observant that she could say things you'd never admit as if seeing right through you. Chapter 14 revealed that she had the ability to see the future and died in a Heroic Sacrifice to save Red... but was then reborn into the same world as Red, except a thousand years earlier, and was part of the Legendary Hero's party alongside the original Amun.
  • Fountain of Youth: When the heroes arrive in Nisvale, they find almost all of its adult inhabitants reverted back to children with no memories of their adult lives. This effect is not voluntary, as Red and Teltina are both affected and transformed into six-year-olds. Idora and Rosie deduce that the magic only works on those longing to return to their youth.
  • Furo Scene: There's a scene where Idora and Teltina bathe together in a natural hot spring outside Akarina. In addition to the Fanservice of seeing the girls naked (with Censor Steam covering the naughty bits), the two are able to relax and talk to each other about why Teltina sought Idora out and their mutual respect for one another.
  • Generic Doomsday Villain: The Breakup King has no known motive aside from wanting to conquer Earth and wipe out the human race, which motivates the Kizuna Five to stop him.
  • Got Me Doing It: At the end of the second chapter, Red strikes a "Super Sentai" Stance after blowing up the Seed of Magic monster with the Victory Kizuna Buster. Idora and the two nameless adventurers also strike the same pose, much to their confusion as they wonder why and how long they've been doing it.
  • Harmful to Minors: Red was orphaned in a car accident at the tender age of 7. At his parents' wake, none of his family's friends offered to take care of him, citing the expense of raising a child, while saying that it'd have been easier for everyone if he'd just died with his parents. This incident scarred him for life, leaving him obsessed with forming bonds with others both to honor his parents' wishes for him and to patch the gaping hole in his heart.
  • Hellhound: When Red first arrived in Idora's world, he bumps into an adventurer party going after a dangerous "Odd-Eyed Orthrus", a two-headed monster hound the size of a tank with the power to use water, thunder, earth, and wind magic. It's strong enough to bat an untransformed Red aside with ease before sprouting a third head able to use fire.
  • Hero of Another Story: Red's backstory is this. He and his friends had a huge, expansive adventure that was just finished when he arrived in this new world.
  • Homoerotic Subtext: The reveal that Professor Betrayis, the scientist of the Relationship Enders and a member of the Hero's Party was once the closest of friends with Professor Pythagoras reeks of this. After being killed by the Breakup King, all of Betrayis' thoughts were spent wondering where he went wrong and how he ultimately wanted recognition from Pythagoras most of all. Betrayis later describes his former relationship with Pythagoras as "inseparable". Their bond was also so strong that Betrayis' death sent him back in time to meet Pythagoras' past life as a king in Idora's world.
  • Hot Springs Episode: Following the end of the battle at the Sun Forest, the Sun Elves invite the heroes to recuperate in the hot springs they've built. Aside from the obvious Furo Scene fanservice, the springs seem to have actual healing properties thanks to the magic ores melded into the cactuses the hot springs are built into, as Rosie recovers from a wound he thought would keep him out of commission for a month after one soak. As a Japanese person, Red is particularly happy to soak in them.
  • Immune to Fate: Played with. Silver can see Red's future, and her own... but Vidala, from the Demon's Clan, can't see Red. According to her, the future said that Idora was supposed to die gathering Mana Metal, the first mission that she and Red went on together, and Azir was supposed to destroy Amun and the Sun Forest. Neither of those happened, due to Red's interference. Vidala says it feels like somebody is covering her magic eye whenever she tries to see Red's future... and Silver is seen reaching around from behind Vidala to literally do exactly that. This is presumably because Vidala is using her copy abilities to copy Silver's precognition powers, giving Silver some sort of influence.
  • In Spite of a Nail:
    • The Doppel Anothers are clones of alternate reality versions of Red and through them, we learn that there are two constants throughout the multiverse: in every world, the resident Togo Asagaki will always become Kizuna Red or some equivalent, and secondly, that Red always meet the Idora of their world, who goes on to become the person dearest to their heart.
    • Rosie's Single-Target Sexuality towards Teltina also appears to be consistent across the multiverse, as the Rosie of Bad End's world is still in love with the princess despite being born a woman there.
  • Instant Runes: A sigil lights up on Red's back when he transforms, creating the explosion that blasts away everything behind him. It appears again when he dispels his costume, sucking everything back in.
  • Irony: Teltina's elder brother, Prince Dariel, absolutely despises Demi-Humans and considers them barely sapient savages. But as we learn in Chapter 27, unlike humanity's feudal society, the Demi-Humans possess a thriving society technologically comparable to modern-day earth, making humans look like the savages in comparison.
  • Lap Pillow: Teltina bribes Rosie with an offer of this combined with an Ear Cleaning to get him to cooperate with Red to save Akarina.
  • Like Reality, Unless Noted:
    • Idora's world shares a remarkable number of concepts with the modern world Red is familiar with. Time is tracked in hours and days. He also notices that many problems he's seen or heard about in his world, like slavery, are widespread in Idora's world, so he makes it his mission to correct injustice wherever he goes just as he did back home. Lap Pillows and Ear Cleanings also have the same intimacy in Idora's world that they do in Japan.
    • Idora also happens to know a form of mouth-to-mouth CPR, using it to resuscitate Red after he nearly drowns from being knocked unconscious and sent into a rushing river.
    • Similarly, Red's world appears to be similar to our own world, with cities, technologies, and fashions that wouldn't appear strange in our world showing up (the Sentai-esque tech notwithstanding).
  • Magic A Is Magic A: While initially it was assumed that Red's transformations were Wrong Context Magic, Chapter 7 and 8 show that the Mana Metal recovered earlier has a connection to Kizuna Energy, as demonstrated when Idora accidentally uses some to teleport Red to her bathroom.
  • Male Gaze:
    • A lot of the panels call attention to Idora's breasts or butt, and the two adventurers she kicked out of her house are quick to leer at her boobs after making a bet against her.
    • Chapter 15 has Silver and Teltina note that Red sneaks peaks at notable female chests, specifically mentioning Silver's, Idora's, and Ranya's.
  • Maou the Demon King:
    • Idora mentions that the demon lord of ages past was sealed away by a hero from another world. Rosie wields the sword that did the sealing, contributing to his credentials as a hero.
    • At the end of the fifth chapter, an unknown villain claims that their goal is to revive the demon lord.
  • Mecha Expansion Pack: Chapter 21 gives us Elephundam, an elephant mech that can combine with Kizuna Kaiser to form its Gigantic Great General Mode.
  • Mondegreen Gag: Due to getting translated via Translator Microbes, Red mishears Toby and Fou's explanation of "the former Royal Magic Wand who was banished from the Magic Tower" as "a former big ship who got banished from grape sugar". Red nods as if he understands through his thought indicate that he's clearly confused.
  • Murder the Hypotenuse: Seeing Red as a threat to his affections for Teltina, Rosie steals Red's Bansou Plate in the middle of the night so Red can't transform while fighting the monster empowered by the Seed of Magic.
  • New Powers as the Plot Demands: Idora's desire to protect and assist her friends as well as confirm what her relationship with Red is causes her Big Bond Soul to manifest the Elemental Bond Plate. This allows her to summon the Kizuna Elements, comprising of: Ifrit Panzer, Undine Cannon, Celsius Edge, Drillgnome Drill, Syphide Turbo-Charger, Shade Shield, and Wisp Visor. They're capable of combining with the Kizuna Emperor to form the Elemental Kizuna Master.
  • No Name Given: The two veteran B-Rank adventurers who take and fail Idora's test are never given names, even when Red and Idora run into them again in the next chapter and they get substantially more screentime.
  • Normal Fish in a Tiny Pond: Red claims that some of the stronger enemies that he and Idora face are as strong as some of the weaker members of the Relationship Enders. In addition, he's able to summon technologies and weapons capable of obliterating the strongest foes with barely any effort.
  • "Not Making This Up" Disclaimer: The fan translator leaves a side note that they're not making up the names of Red's weapons or attacks, including (but not limited to) the Handshake-Calibur, the Marriage Beam Gun, Lovers' Snipe, Marriage Shot, and Engagement Burst.
  • Not What It Looks Like:
    • Red squirms when Idora tries to take some of his blood to figure out the source of his powers. The ensuing struggle ends with her on top of him, prompting the manager of the adventurer's guild to ask them to do such things somewhere else.
    • It happens again when Poseidon tries to castrate Red out of fear that the latter will make advances on Idora. This time, the princess shows up, cheerfully noting that these two are "enthusiastic" in the morning.
    • In Red and Rosie's duel, Red calls on the Maximum Kizuna Kaiser to match Rosie's sacred sword. Princess Teltina accidentally gets swept into the cockpit in the process, and Rosie immediately accuses Red of taking her hostage.
    • Shortly before meeting the elves, Idora hurts her finger by pricking it on a cactus. Red is quick to give her a band-aid, and though he explains what it is, all Idora can see is that he just wrapped something around her finger and that it looks sort of like a ring.
  • O.O.C. Is Serious Business: In chapter 2, when the Seed-infested man first shows up in monster form, all the minotaurs that the group had been fighting run away in fear, and Red steps forward without his usual Hot-Blooded attitude, claiming it feels like one of the Secret Society he fought against.
  • Our Dragons Are Different: The first dragon seen in the story is more akin to a Kaiju than a typical western dragon. It's bipedal, only has fins on its shoulders instead of wings, and primarily attacks with clawing attacks rather than using its Breath Weapon. It also keeps a Dragon Hoard and seems to be animalistic instead of sapient.
  • Our Wyverns Are Different: Idora owns a wyvern that she uses for transportation. It's apparently domesticated and snuggles up to her affectionately while gently eating a whole cooked chicken off a stick.
  • The Outsider Befriends the Best: After six months of being Trapped in Another World and finding work as an adventurer, Red gets hired by Idora Alvorn, the daughter of the former Royal Magic Wand, to help her with her research. Not long afterward, the two of them are recruited by Princess Teltina, third princess of the Avalost Empire, and Rosie Mist, the current hero and wielder of the Royal Sacred Sword. The four of them soon set off to prevent the spread of the parasitic Seeds of Magic, running afoul of the Demon Lord's children in the process.
  • Painting the Medium: The dialogue for Abu Dhabi's grunt of surprise is flipped upside down as Red punches him into a nearby building to emphasize just how hard he was hit.
  • Pirates Who Don't Do Anything: Although Idora and Red are employed as adventurers, they don't do a whole lot of adventuring requests since Idora's primary focus is her research and then the Seeds of Magic once they're recruited by Teltina. Lampshaded in Chapter 17, when it's shown that Red and Idora completely forgot that they're adventurers until Teltina points this out to them.
  • Post-Adventure Adventure: The story begins In Medias Res as the titular Kizuna Red defeats the Big Bad threatening his world at the cost of his own life. To Red's surprise, he emerges unharmed in a fantasy world rather than the afterlife, spending six months doing odd jobs as an adventurer to gain his bearings before being hired by Idora Alvorn. The reader gradually gets more context about his previous adventures from his own exposition and flashbacks.
  • Ragtag Bunch of Misfits: Ranya's great-grandmother reveals that the Hero's Party was less a bunch of paragons of virtue and more a group of weird, shady people who happened to work together to achieve a goal. Amun was a skirt-chasing archaeologist, Silver creeped people out with her constant prophecies, and Professor Betrayis is a Mad Scientist who tried to experiment on everything he could get his hands on. Even the Hero was a gloomy person desperate to prove himself after being abandoned by everyone who cared about him.
  • RPG Mechanics 'Verse: Idora's world works much like an RPG video game, complete with stat screens and levels. Funnily enough, Red's own stat sheet reads more like a data card off a Toku show, listing information like his height and weight, running speed, and punching power versus typical RPG stats like strength and speed. note 
  • Sadly Mythtaken: History and myth recorded the Hero's Party that defeated and sealed away the Demon Lord a thousand years before the events of the story consisted of an otherworlder hero and his companions. In truth, the Hero was the only one native to Idora's world, while the rest of his party consisted of Toku otherworlders, including Silver and the first Amun.
  • Secret Test of Character: Lampshaded. Red barges into the Alvorn estate by tackling the golem Idora was using to test adventurers to see if they would be tough enough to help her. He initially assumes that it was a kidnapper of some kind, but then jumps to the conclusion that it was all one prolonged test of his abilities. Idora sheepishly says that, no, she hadn't been testing him because she didn't know that he'd even arrived yet, and that he'd done all of that on his own.
  • Sensible Heroes, Skimpy Villains: Inverted. Idora is a Hot Witch who dresses in a revealing outfit with a Cleavage Window, leaves her stomach bare, and shows off her thighs. Her Arch-Enemy Shauha wears fully-figure concealing robes.
  • Set Swords to "Stun": Red and Rosie's swords only seem to harm monsters. When used against people, they only seem to knock them out. This becomes especially egregious after Red uses the Maximum Kizuna Kaiser to push Lurguat's mutated body into space, cut it in half, and make it explode with Rosie's help, only for Lurguat to show up merely unconscious on the ground.
  • Screw Destiny: Double Subverted. Despite Red's best efforts, Silver died protecting him as she predicted before becoming a member of the Kizuna Five. This is what instilled Red's belief in fate and destiny. But unbeknownst to him, his presence has caused a butterfly effect that averted all of the premonitions made by Vidala, a member of the Demon Clan. Idora was supposed to be killed by the mana metal-hoarding dragon and Azir was supposed to destroy the Sun Forest and Amun, but Red's presence averted both outcomes. Vidala complains that none of her predictions had ever gone awry until Red stepped into the picture.
  • Shout-Out: Because Red is a Henshin Hero Trapped in Another World, he makes constant references to Tokusatsu and Japanese pop culture in general.
  • The Smurfette Principle:
    • Chapter 15 reveals how Silver basically has this position during her time in the Hero's Party.
    • Vidala appears to be this for the Demon Lord Clan's generals, being the only female member among her siblings.
  • Socially Unacceptable Collection: Conrad Vandyne became obsessed with action figures after spending most of his childhood being drilled into becoming the perfect heir to his father's estate. While the collection itself is rather harmless, Conrad's fiance breaks off their engagement after discovering him playing with these toys. This causes Conrad and his father to lose face, resulting in Conrad's Start of Darkness and using a Seed of Magic to transform Nisvale into a children's paradise where he won't be mocked for liking toys.
  • "Super Sentai" Stance: Red, Idora, and the two unnamed adventurers they're partying with instinctively strike one of these poses after successfully using the Victory Kizuna Buster to defeat a powerful monster. Idora and the others are wondering why and how long they've been striking this pose when they finally realize they're doing it.
  • Surprisingly Realistic Outcome:
    • Red still has all his powers as the Red Ranger of the Kizuna Five. Unfortunately, The Power of Friendship doesn't work as well without his friends backing him up, and he often uses them at inopportune times due to not being used to the fantasy world he's in.
      • Whenever Red transforms into Kizuna Red, there's always an explosion appearing behind his back and he tends to make stuff explode as a Destructive Savior. This makes him as much as a hazard to his allies as his enemies, and no-one besides Idora wants to party with him because of his inability to avoid destroying the precious drop items.
      • His Humongous Mecha is incredibly powerful, but it's so huge that it can't be used in an enclosed space. And as a weapon designed for fighting Kaiju, it's too big to properly fight anything remotely human-sized. His fight against the dragon proved this when it got stuck in the cave the dragon lived in, and the fight against Rosie proved the unsuitability of it in defeating human-sized targets- while it did prevail, Rosie was capable of doing lots of damage to it because it was too bulky to defend itself against a small, fast-moving target.
      • Red's Hot-Blooded, happy-go-lucky friendliness only makes him weird to the locals, who wonder why he poses so strangely. His lack of decorum quickly draws the ire of the princess' bodyguard, who quickly picks a fight with him over his inability to address her properly.
      • Anyone Red has a sincere bond with can board the Maximum Kizuna Kaiser and help pilot and power it. But Red's companions are from a fantasy world and have no idea how to control a Humongous Mecha when they're suddenly put in the driver's seat. This leaves Red struggling to control a vehicle meant to be operated by five people, throwing his companions all over the cockpit as he has to handle most of the movement by himself.
    • Shauha's "monopoly on magic" is actually tackling the problems created when Everyone Is a Super. She laid down mandates in response to the problems created by people who aren't being trained or vetted properly in the uses of magic and magic items. According to her, spells gone awry and shoddy magic items flooding the market have caused innumerable injuries and even deaths. Restricting the use and research of magic to the specially trained would go a long way toward mitigating these issues. To Idora's shock, Red agrees that this is a problem and calls Shauha's licensing system a good idea, comparing it to driving and doctor's licenses in his world. Though he also says that Shauha is far too restrictive over who should get the licenses, as the use of simple magic items could be easily taught in a single class.
    • After the reveal of Red's Dark and Troubled Past, he's given a You Are Better Than You Think You Are speech by a recording of the long-departed Silver to snap him out of his depressed funk. But Red remains susceptible to the forced Fountain of Youth privilege magic cast on Nisvale. Rosie expresses surprise that someone as positive as Red would ever want to go back to his youth. Idora refutes him, explaining that someone who cherishes their bonds as much as Red would love to return to their youth after losing his parents in a car accident and Silver in battle. It also shows that more than a decade of emotional baggage can't be resolved by a single pep talk, no matter how profound.
  • Surveillance as the Plot Demands: Chapter 27 reveals that Professor Betrayis, an ex-executive of the Relationship Enders has been spying on the heroes since the very beginning with the help of a satellite he launched into space.
  • Talking Is a Free Action: Subverted and Played for Laughs. Idora is busy protecting the others from Lurguat's monsters with a barrier when Red, Rosie, and Teltina all decide to work out their issues along with dropping an Exposition Dump. Idora becomes increasingly frantic as the barrier cracks and she becomes nauseous from the effort needed to maintain it. Luckily for her, they finish and finally get their act together by the time the barrier collapses completely.
  • Theme Naming:
    • The Kizuna Five's weapons have a tendency to be named after things related to bonds and relationships, including marriage. Hence there's the relatively tame names of Handshake-Calibur and Victory Kizuna Buster, versus the comparatively outlandish (for the genre) Marriage Beam Gun.
    • Likewise, the Relationship Enders' names tend to reflect the breaking of bonds, like the original Japanese name for their King, "Isolation King," and one boss is named "Rejection Ender".
  • Trapped in Another World: The story begins with Red being transported to another world after giving his life to take down the Breakup King. He wasn't the first one either, as Idora mentions that there are numerous heroes who claimed to be from another world who arrived in times of crisis. At the end of the fifth chapter, an unnamed villain points out that he's not even the first Ranger in their world.
  • Two Girls to a Team:
    • The Kizuna Five had three guys (Red, Green, and Blue) to two girls (Yellow and Pink), though there's a brief glimpse of a feminine-looking Kizuna Silver while Red's life is flashing before his eyes.
    • As of chapter 5, this also holds up to Red's new group, with Idora and the Princess taking the role of two women the team.
  • Uniqueness Decay:
    • At the crux of Rosie's Green-Eyed Monster behavior toward Red is his lack of magical power. The only real qualification to wield the Royal Sacred Sword is the lack of it, and Rosie is terrified of being replaced as the hero and going back to his lonely, miserable existence when Red, another powerful warrior without magic, shows up out of the blue and grows close to Teltina.
    • At the end of chapter 5, Abu Dhabi, one of Demon Lord's children, remarks that "It's a red one this time" regarding Red, implying that other Sentai rangers have shown up in this world in the past.
    • Chapter Nine has an elf transform just like Red into a Kamen Rider-esque figure named Amun, showing that Red is not the only transforming hero in the world. Chapter 14 outright states that Silver, one of Red's old companions, was a hero in this world in the distant past. The magical recording left by Silver also states that she teamed up with Professor Betrayis, the Mad Scientist who worked for the Breakup King and wound up creating the Royal Sacred Sword.
  • Wham Episode:
    • Chapter 5: Teltina has a Magic Seed, and we see a mysterious figure holding multiple Magic Seeds make a comment that implies that the villains have fought Sentai Rangers before, and that their ultimate goal is to resurrect the demon lord, a figure previously mentioned as having been sealed away by Rosie's sword. We also get to see the Sixth Ranger, Silver, in a flashback.
    • Chapter 14. We get to see Red's backstory when he activates the Dangerous Forbidden Technique of the Black Kizuna Morpher. His desire to make friends is a combination of Freudian Excuse, since his parents told him his name meant that they wanted him to make friends, and a way to dull the pain- since shortly after they told him that, they both died, leaving him an orphan. At their memorial service, no one wanted to take him in, and one person even commented that he should have died with them. Then we get to see Silver with more context- she had prophetic abilities and predicted her own death from working with the Kizuna Five. Red grew romantic feelings for her, and eventually convinced her to work with them... which ultimately led to her death as she sacrificed herself to save Red from one of the Isolation King's minions. Red admits to himself that the bonds he tries to forge are a way of trying to put a bandage over the hole in his heart from the losses, but that it doesn't feel like it's working. At the end of the chapter, when Red wakes up, he takes a closer look at the mural that depicts the legendary hero from a thousand years ago and his party, which included Amun... and sees that Silver was one of those in the hero's party.
  • Wham Line: At the end of Chapter 5, a mysterious figure remarks that "it's a red one this time" while observing Red from a distance, implying that other Sentai rangers have shown up in Idora's world. On top of that, the rangers are getting hunted for the sake of reviving the Demon Lord.
  • With Catlike Tread: While competing with Red to show him who the better adventurers are, the two unnamed Rank B adventurers plan to sneak around to the boss to take it out while Red is busy dealing with the other monsters. Unfortunately for them, Red transforms, causing a deafening explosion that quickly draws every monster in the cave toward them.
  • Wizard Duel: The position of Royal Family Wand can be seized by defeating the current Wand in single magical combat. Idora's father lost the position to Shauha some time before the story.
  • The World Is Just Awesome: When Red briefly transports everyone to outer space, they are disappointed because they grew up on stories of Heaven being above the clouds, but Rosie admits the view was beautiful and sincerely thanks Red for showing it to him.
  • Wounded Hero, Weaker Helper: Although he's normally strong enough to take on almost anything Idora's world can throw at him, Red needs Idora to rescue him after he uses up all of his energy after failed attempts to use the Maximum Kizuna Kaiser and the Victory Kizuna Buster.
  • Year Inside, Hour Outside: It's heavily implied that time in Idora's world passes far more quickly compared to Red's world, as Silver and the Professor arrived 1000 years before Red did despite both of their deaths being relatively recent back in their home world.

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