Self-Made Orphans of Anime and Manga.
- In the Ace Attorney manga case "Turnabout from Heaven", it is thought that Diana killed her abusive father by poisoning him with buckwheat flour, but he accidentally ingested it.
- Attack on Titan:
- Eren devoured his father Grisha the first time he transformed. It's a rather heart-breaking double-subversion, since Grisha intentionally fed himself to his son so Eren would not only have the Attack Titan's power but the knowledge gained from his massacre of the Reiss family, only for it to be later revealed Eren through the Paths and Attack Titan was manipulating his father to commit the Reiss family massacre and may well have forced him into feeding himself to his past self. Then there's how the final chapter heavily implies he used the Paths to manipulate the Titan that ate his mother to do so, especially since it ignored Bertolt despite how mindless Titans instinctively try to eat Titan Shifters.
- Zeke Yeager is Eren's older half-brother who turned in his parents to the military for being part of La Résistance. While Grisha managed to survive after being sent to Paradis Island, his mother Dina (Grisha's first wife) wasn't so lucky. He was then raised by his paternal grandparents.
- Baccano!: Czeslaw Meyer is one in a case of the dog biting back where he kills his parental guardian, Fermet by the only means possible for immortals: devouring them. Luckily, he eventually gets a better replacement.
- Berserk:
- Guts, the aptly named main character, killed his abusive adoptive father Gambino in self-defense when he went into his tent and tried to murder the kid. Gambino did this because he blamed him for the death of his adoptive mother Shisu, due to a superstitious belief that she died of plague as a result of picking Guts up from beneath his mother's corpse.
- A much-abused pre-teen girl named Rosine snapped upon being beaten by her abusive father, activated her Behelit and sacrificed both of her parents to the Godhand for her wish to become a fairy and escape from her horrid life. This led her to become the local Dark Magical Girl.
- In Bleach 466, Yukio's backstory has him ruining his father's business and driving his and his mom to suicide, as revenge for their abandonment. Hitsugaya isn't impressed when Yukio tells him. There's a subversion, though: Yukio claims that he did it happily to punish them, but then Hitsugaya realizes that he's not half as remorseless as he believes; when he points it out, Yukio starts defending their memories instead, which leads to a massive Villainous Breakdown.
- In Blue Comet SPT Layzner, Ruu-Kain shoots his father Gresco dead while in the middle of a massive Freak Out after learning the truth behind Grados and Earth. He later hides this and arranges a massive military funeral for Gresco.
- A Downplayed example in Blue Ramun — Killy is the only caretaker to her sickly little brother Lau since their mother is dead and their father is an abusive drunk. Although she pleads for the Lezak orphanage to take in her brother, they refuse her because Killy and Lau's father is still alive (even though he refuses to provide for them). Killy resolves to murder her father so that the orphanage will have to care for Lau, but is prevented from doing so when protagonist Jessie throws herself in front of Killy's blade. Killy's attempt scares off her dad, so in the end, Lau is accepted into the orphanage and has his treatment covered while Killy goes to prison for attacking a Blue Doctor.
- Call of the Night: Ten years ago Kyouko Mejiro killed her own father, who had turned into a vampire, in retaliation for killing her mother by draining all of her blood before attempting to do the same to her. She then disappeared from the public eye for a while and resurfaced as Anko Uguisu, a private detective and Vampire Hunter. It would be revealed later that her father's own circumstances weren't so simple...
- More than one of these cases show up in Case Closed, one taking almost at the start of the series. Conan and his friends sneak into an apparently abandoned house, but it turns out that it's still inhabited... by an old and desperate woman who keeps her son locked in the basement after he snapped on his father fatally during a fight, intending to wait until the Statute of Limitations for the crime has passed, even when the son does and has apparently always wanted to go to jail and atone for his crime. Conan manages to help the poor guy convince his mom to let him go, and they peacefully turn themselves in.
- Code Geass:
- Suzaku Kururugi killed his father, the Prime Minister of Japan, Genbu Kururugi, during Japan's war against Britannia. He did this in order to force Japan to surrender, thus ending the bloodshed of the war and preventing Japan's total destruction, since Genbu actually was ready to have Japan destroyed rather than under Britannian rule. It worked, but the character is so horribly torn by guilt that the incident gives him Laser-Guided Amnesia for years. To make things worse, it's indicated in some of the background material that if Japan had fought to the end as Genbu wanted, that could have bought enough time for the Chinese Federation and/or the EU to intervene on Japan's behalf. No wonder the culprit grew into such a Death Seeker.
- In R2 Episode 21, Lelouch Lamperouge killed his father and mother (after spending 90% of the series trying to find out who killed her). They were trying to bring about the end of the world at the time, though.
- In the light novels, it's mentioned that Blood Knight Luciano Bradley killed his abusive father at a very young age.
- Cross Ange: In the first episode, the fantastically racist people of the Misurugi Empire blame Angelise Ikaruga Misurugi for the death of her mother, Empress Sophia, when she took the bullet for her after Angelise resisted arrest for being revealed to be a Norma. Later, Angelise (now going by "Ange") is horrified to learn that her brother, Prince Julio, had their father — Emperor Jurai — executed by hanging for sheltering Ange despite being a Norma. It's even implied by his utter disinterest as he "laments" Sophia's death in the first episode that he likely would've executed her as well, had she not sacrificed herself for Ange's sake.
- A Cruel God Reigns: Jeremy intentionally kills his stepfather Greg via Vehicular Sabotage, but does not intend for his mother, Sandra, to be in the car as well. Oops. Although considering the Rape Leads to Insanity in this manga, you can't blame Jeremy too much.
- The Dagger of Kamui starts with a tragic variation: The Protagonist, Jiro, is framed for the murder of his adoptive mother and sister, and forced to flee mob justice. He's rescued by a passing monk, Tenkai, who offers Jiro the chance to take revenge on the Ninja who killed them. This ninja is actually Jiro's Disappeared Dad, who had rebelled against his former master. Tenkai had arranged the murder both as a trap for the rogue and as the opening act in a Gambit Roulette revolving around making Jiro into a Tyke-Bomb to discover the secrets that died with his father.
- In Demon Slayer: Kimetsu no Yaiba, this is Sanemi Shinazugawa's biggest tragedy and the source for his hatred of all demons. He was leading a humble and relatively happy life after his deadbeat father died; Sanemi became the man of the house, caring for his mother and all his siblings. Then one day his mother Shizu became a demon, and Sanemi- out of pure instinctive fear- ended up killing the demon that was once his mother in self-defense. The pain of killing his own mother was coupled with the fact that his little brother Genya mistook the event as Sanemi killing their mother on purpose and called him a monster, as he didn’t realize that their mother was a mindless demon at the time of her death.
- In the Descendants of Darkness anime, it's revealed that Muraki's half-brother Saki (who was illegitimate, through Muraki's father) killed his parents and Muraki's mother, and tried to kill Muraki himself before being shot and killed by one of the family's bodyguards. The manga has a different, more confusing take on it, which will likely never be resolved.
- Tsubasa of Destiny of the Shrine Maiden killed his abusive father in defense of his younger brother Souma.
- A pretty convoluted case is shown in Detective School Q. The widow Hanayo Ichinose fakes her death and uses the insurance money to rebuild her business, then gets plastic surgery and tries to get closer to her family (who don't know she's still alive) under the disguise of a Phony Psychic. Her sons Akihiko and Kunihiko, however, mistakenly think that the strange woman who tries to worm her way into their lives is an accomplice of their Evil Aunt Sachiyo, a greedy Smug Snake who wants to get the custody of their little sister Kaoru since she's the rightful heiress to what's left of to the family fortune.. so they murder Hanayo without knowing who she really is, in a desperate bid to save poor Kaoru from Sachiyo's machinations. What follows is heartbreaking.
- Dragon Ball: Goku killed his adoptive grandfather Son Gohan through accidentally stepping on him while he was in Great Ape form during the full moon. Being a child and not remembering said incident, he believes his grandfather died of natural causes. His friends deduce what happened when they see him as a Great Ape, but decide to not tell him — and neither does Son Gohan himself when they briefly meet, thanks to Fortuneteller Baba. Goku only learns the truth when he's an adult already, having learned the story of the Saiyan race from one of the Kais and having witnessed Vegeta's own transformation into a Great Ape during their fight, and is deeply unhappy.
- Elfen Lied:
- Although it's not the case with any of the named Diclonii in the show, most of the diclonii kill their own parents; sometimes from fear, sometimes from the influence of their Superpowered Evil Side.
- The Elusive Samurai: After one too many abusive and torturous training sessions, Fubuki eventually slayed his own father and set off on his own. He is a lone, starving ronin when the Elusive Warriors first meet him.
- Fairy Tail: Sting and Rogue "killed" the dragons that raised them.
- This is basically what Emiya Kiritsugu did in Fate/Zero. He killed his father and later his surrogate mother because their deaths potentially prevented the deaths of many more. He began to think that way because his friend/love interest begged him to kill her before she lost control, which eventually caused a catastrophe, and he couldn't do it.
- Souther from Fist of the North Star was tricked into killing his beloved adoptive sifu, as the final stage of his training. This emotional trauma led Souther to swear off love and become a monster.
- Fruits Basket:
- Tohru Honda originally believes she is this, believing that her not telling her mother Kyouko to come home safe somehow caused her accidentnote .
- Kyo Sohma, although his father is still alive, also believes himself to be this because his curse (of being the Cat) caused his already mentally unstable mother to commit suicide.
- At the end of Fullmetal Alchemist: The Conqueror of Shamballa, Envy finally killed his father. He had been wanting to do so most of his life.
- Fushigi Yuugi: Genbu Kaiden has a prophecy in which Prince Rimudo aka Uruki, one of the Genbu Senshi, is fated to kill his father, Lord Temudan. It's ultimately averted: the prophecy ACTUALLY said "the Emperor will die when the Genbu Senshi are reunited", Uruki wanted at first to kill his dad but decided otherwise... and Temudan, who had just been crowned after The Emperor aka his brother Tegiru and the one who spread such lies was subjected to a Cruel and Unusual Death, is killed by someone else instead, and in front of Uruki and Takiko. At least Temudan and Uruki manage to make peace before the first's death, however.
- Fushigi Yuugi: Byakko Ibun has a very tragic version in its first chapter. A shapeshifting tiger woman was forced to leave the baby girl she had with a human man in care of her dad, and ten years later she reappeared as a tigress intending to check on her well-being (and destroy the village if the kid was abused). The little girl, Reipin, had NO idea of this and had been thoroughly abused by her family, but she met a Magic Knight named Nirusha who was very kind to her and needed to kill a tiger to escape a fatal curse... Three guesses as to what happened next. And for worse, upon hearing her dying tiger mom's last words, Reipin stormed into her house and was told the truth... and she snapped so badly after all the Break the Cutie that she shifted into her tiger form for the first time, killed her father and whole family, and destroyed the village.
- In Future Diary Yuno Gasai's parents kept her locked in a cage and starved her in an attempt to make her into a "perfect" girl. Eventually she snapped and locked them in the same cage until they died of hunger.
- In Haou Airen, Hakuron's father was an utter bastard who planned to kill him due to a prophecy. A child Hakuron managed to escape from his dad's grasp (his mother wasn't so lucky), was adopted by a Triad leader, and when he was a teenager he faced his father and killed him himself.
- In Heat Guy J, it's revealed that Clair shot his father after years of abuse, and got a Klingon Promotion to "Vampire" out of it. Additionally, his mom died giving birth to him.
- Hunter × Hunter Meruem was born in a chestburster style when he ignored him mom to stay in her womb until she is ready to give birth to him
- In Inuyasha, young Kohaku is forced to kill his father and other people from his village while Brainwashed and Crazy, with only his older sister Sango surviving. The trauma of this is later brought up to explain why he no longer tries to fight the mind control (because that would mean remembering, which is such a horrifying experience for the kid that he'd rather have Laser-Guided Amnesia).
- JoJo's Bizarre Adventure:
- In Phantom Blood, Dio Brando kills his father Dario with a slow-acting poison, making it look like Dario is dying of a disease. He hated his father for being abusive to his mother, whom he loved dearly. He tries to do it again (using the same method, no less!) to his adoptive father George Joestar (for the money), and would've gotten away with it too if it weren't for that meddling Jonathan!
- Kars in Battle Tendency also... well, forget killing his parents; he killed his clan, save for his ally Esidisi and the infants Wamuu and Santana. On the other hand, they were trying to kill him before he could put the Stone Mask to use.
- Katanagatari: Shichika is responsible for killing both his father and sister, leaving him as the last member of his clan.
- In Kino's Journey, the king of the Coliseum Country ended up being assassinated by his son, who established the gladiator games that the country is known for. In response, the new king's son, Shizu, set out to kill him, although Kino ended up killing the king with an "accidental" shot during her match with Shizu.
- In The Legend of the Legendary Heroes, Lucille kills his parents in order to protect his sister Ferris from them.
- In Ludwig Revolution's red-riding hood chapter has Lisette, who later goes under the red-riding hood name, kill her two parents after she saw they had gotten money for selling her as a sacrifice to a wolf in the nearby forest. She actually killed them because they had forced her into prostitution from a young age onward.
- Vital to the plot of Lupin III vs. Detective Conan: Queen Sakura of Vespania is believed to have been accidentally shot to death by her son and heir Prince Gill, who then shot himself in regret. In reality, Queen Sakura's brother-in-law, Duke Gerard, killed Sakura first and then shot Gill dead after he walked into the crime scene...
- Madlax has the main character Margaret, who split herself into her and Madlax to kill her beloved but now Brainwashed and Crazy father, Colonel Richard Burton, in self-defense.
- Magi: Labyrinth of Magic:
- Hakuryuu Ren killed his mother Gyokuen in order to avenge his brothers, by beheading her with a swift cut of his blade.
- Ja'far used to be a psychotic child assassin for the Parthevian Empire. He killed them when he was six.
- Gundam:
- In Mobile Suit Gundam, Prince Gihren Zabi becomes The Starscream and kills his elderly father, Sovereign Degwin, when he was trying to make peace with the Earth Federation. He doesn't get away with it; his Evil Genius sister Kycilia offs him soon after, on the grounds of him being a patricidal murderer who would've been executed anyway.
- Mobile Suit Gundam 00 has two tragic cases:
- Sohran Ibrahim, the boy who would become Setsuna F. Seiei, the lead protagonist himself, shot both of his parents to death. In his defense, he and many other kids were brainwashed into doing so by Ali Al-Saachez to "prove their faith" to a cause Ali himself didn't even believe in, and it's definitely not something he's proud of. One reason he's more or less close to Princess Marina Ismail is because of her similarities to his dead mother.
- Andrei Smirnov of the A-Laws kills his own father
Sergei, under the mistaken impression that he was part of a coup. He only realized his horrible mistake thanks to a combination of GN particles and a pep talk with his adoptive sister Marie.
- In Monster, Johan kills several sets of adoptive parents from a very young age onwards. And he kills his sister Anna's adoptive parents, too.
- Albert James Moriarty's first murders in Moriarty the Patriot were that of his mother and younger brother. His father died with the servants once he burned the evidence.
- My Hero Academia: Tomura Shigaraki accidentally killed his entire family when his Quirk first activated, leaving him in the miserable state in which All For One found him. As of Chapter 222 of the manga, it's revealed that he only remembers fragments of the event, but they're enough to make him sick to his stomach.
- Naruto:
- Itachi Uchiha killed everyone in his clan except for Sasuke. A bit of a twist, since he was following the orders of his government to stop the Uchiha from committing a coup d'etat that might have resulted in another devastating world war; in exchange, his superiors agreed to spare Sasuke. In fact, Itachi's entire Start of Darkness flashback from relatively early in the series looks very different after the revelation, when you realize that his emotional rollercoaster and remarks like 'I've given up on this hopeless clan!' aren't actually budding psychosis— they're a soldier struggling to find sufficient reason to reject unconscionable orders, and failing. A later flashback even shows that he really didn't want to do it, and was crying as he massacred his family. And Fugaku and Mikoto Uchiha took their upcoming deaths calmly, basically telling Itachi "you know, it really sucks that things went like this, but go ahead since you've got orders and there is no other choice for you. We won't hold it against you. And we love you."
- A partial example is Haku: His father killed his mother once he found out about their bloodline limit, and when he tried to kill Haku, Haku accidentally killed his father in self-defense out of fear.
- The Filler Villain Shiranami killed his own father in an attempt to obtain the Dangerous Forbidden Technique which his father had been protecting just for the money it could get, and cheerfully boasts about the act.
- Played for tragedy in Negima! Magister Negi Magi: When the Scottish noblewoman Evangeline McDowell was turned into a vampire, she ended up slaughtering everyone in her castle in blind blood lust. When she finally came to, everyone was dead and her parents' blood was on her lips. This happened when she was ten, and she's had to live with that guilt for over 600 years.
- Noir:
- Mafia Princess Lady Silvana, aka the Intoccabile, killed her father for violating the Mafia's code of silence, and when she returns from her banishment kills her grandfather (who banished her) as well. These acts cause Silvana to be regarded with awe by the other mafiosi, and professional assassin Mireille Bouquet is terrified of her.
- Mireille killed her uncle Claude, who had been her surrogate father ever since her parents and older brother were killed by little Kirika.
- In the final episode, Kirika arguably fits this trope, when she kills Altena, who is the closest thing to a mother figure that she's ever knowingly had.
- In One Piece, it is eventually revealed that Donquixote Doflamingo killed his father at the age of ten. The reason? (It's pretty long) Since the Donquixote family were World Nobles, they were completely above the law, able to do whatever they wanted, and ridiculously wealthy. However, unlike the other World Nobles who are INSANELY cruel dicks, Doflamingo's parents were kind and humble, and thus decided to abandon their title to live among the general populace. But because the other World Nobles are so cruel that the citizens rightfully hated their guts to no end, they took out their pain and suffering on the wrong people: the Donquixotes, who just wished to live peacefully. This caused the family to flee the angry mobs of citizens and live in absolute poverty, which leads to Doflamingo's mother's death. The mob eventually caught up with the rest of the family and tortured them brutally. Doflamingo, already very fucked up after the death of his mother and blaming his dad for all the shit the family went through, got so sick of this lifestyle that he killed his father for a (failed) chance to get back to being a World Noble. And then years later, he kills his own brother after finding out he was a double-agent for the Marines.
- Two examples in Psychic Academy, both of them accidental.
- Mew killed her mother when her parents used her as a guinea pig in an experiment to augment psychic powers, causing her fire aura to go out of control.
- Ai killed both his parents when an accidental usage of the light aura he didn't know he had at the time derailed the train they were riding in.
- Belphegor of Reborn! (2004) is hinted to have killed his entire family besides just his brother, though this is only actually mentioned once by Bel himself as an offhand comment to someone whom he was trying to scare.
- Record of Ragnarok: Jack the Ripper was born to a prostitute and had the ability to see people's emotions as colors. He always saw love from his mother, but it turned out that she just saw him as a tool to connect her to his father, and always thought that he'd come back for her once he became a successful playwright. After learning this, Jack kills his mother then finds and kills his father, at the same time becoming enamored with the colors of fear that are shown to him when he murders someone. This leads him to become the serial killer we all know.
- Rurouni Kenshin:
- Soujiro Seta snapped and killed his whole family (stepmother, half-brothers, younger uncles) when he was a child, fed up with their horrible abuse coming from his position as an illegitimate son.
- After Yukishiro Tomoe's death, her very mentally unstable little brother Enishi is saved by a wealthy Japanese family who finds him in near-death in Shanghai sometime after he fled Japan. He kills them, both for the huge sum of money they had and because he simply couldn't stand anyone having a happy life after losing his own.
- In Saiyuki, Gojyo's older half-brother Jien kills his own mother (Gojyo's stepmother) before she can succeed in killing Gojyo. Her coercing Jien into sex on a regular basis probably had something to do with it, too.
- Implied of the Ax-Crazy Chiri Kitsu in one episode of Sayonara, Zetsubou-Sensei. Itoshiki-sensei is killed and she "replaces" him with a small doll to cover up the crime. She quickly becomes paranoid about the rest of the class and they are replaced by dolls as well. While everyone is shown to actually be hiding safely under the school, it makes you wonder when the next scene appears to be Chiri happily telling her parents about her day- and then you see she is addressing dolls...
- The Seven Deadly Sins: In the final battle of the main series (excluding the Cath Palug Arc that sets up the sequel series), Meliodas strikes the final blow against his father, the Demon King, with a massive attack containing the energy of all seven Sins. A much more sympathetic example than most, as the Demon King is the Big Bad of the setting, as well as an abusive parent who had no problem with tormenting his son for 3,000 years over the fact that Meliodas fell in love with Elizabeth, a member of the Goddess Clan. That, and the Demon King's campaign for domination over Medieval Britannia led to the deaths of a lot of good people. Meliodas actually gives his father a Last-Second Chance, however, and reflects the attack that is meant to kill him away. But when the Demon King attacks his son anyways, Meliodas reflects the Combined Attack he reflected back and blows the Demon King to kingdom come.
- The Severing Crime Edge: Yamane killed her and Houko's parents due to being influenced by the spirit of her killing goods' original author. Houko decided to take the blame for it so Yamane wouldn't be burdened with guilt.
- Shadow Star:
- Hiroko "Hiro-chan" Kaizuka kills her parents with her newly-acquired Mon after certain factors drive her to insanity - and said parents' emotional abuse (at least from Mr. Kaizuka's side) is just the straw that breaks the camel's back for her.
- In the manga only, it's suggested that Naozumi Sudo might be responsible for the "disappearance" of his parents and older brother, though his true involvement in the matter is left ambiguous.
- Komori neglected his sick mother until she starved to death, though after a certain point it's difficult to tell whether he had been doing so for very long before he died.
- One of the arcs in Shigofumi involved a high school-age girl who had been forced into pornography by her father. It's unknown what happened to her mom. But when her dad suggested to her that he wanted to get her little sister into the business, she killed him. You could hardly shed any tears for the dad, though.
- Shouwa Genroku Rakugo Shinjuu has a very cruel case where a young Konatsu accidentally was the cause of her parents' deaths, as she unknowingly pushed her mother Miyokichi out of a window and Sukeroku died trying to save her. She can't remember such details, obviously, and believes that both Miyokichi and Sukeroku fell off in front of her.
- Tales from Earthsea starts with the main character Arren murdering his father, the king, for no reason other than to steal his Cool Sword, leaving his mother a widow.
- In Tiger & Bunny, Yuri/Lunatic began his career by killing his own father, Mr. Legend, who was beating up his mom.
- It's revealed in Tokyo Babylon that the Sakurazukamori only consists of one person at any given time since the process of inheriting the title is killing the predecessor, usually the person they love the most. As Seishirou's predecessor was his mother Setsuka, he killed her: then he held her in his arms as she died and told him that he'd sooner or later be at the receiving end too...
- In Tokyo Ghoul :Re, this comes up several times:
- Seidou Takizawa implies during a kakuja-related meltdown that he was forced to eat his parents during the process of being Reforged into a Minion.
- Saeki aka Torso's Start of Darkness began when he killed his father in a blind rage.
- In a shocking twist, Tooru Mutsuki is revealed to have murdered his family after years of being abused by his father.
- In Tomorrow's Joe, Ryuhi Kin kills his father by accident when he thought he was a hungry soldier who came to his son to get him food during the Korean War. Because of this incident, he developed a fear of blood.
- Undead Unluck has a Jerkass God who deliberately grants Negators their powers at the worst time for them emotionally, in a cruelly inverted case of Traumatic Superpower Awakening. One method of it doing this is granting those powers so that they would accidentally kill their parents before they realize that they have powers or learn what their powers can do, such as with Fuuko, Tatiana, and Chikara.
- Yu-Gi-Oh!:
- In the manga, Seto Kaiba drove his abusive adopted father to suicide after taking over his company.
- One of the first things Marik's dark side did after awakening was stab his father to death.
- Yuureitou: Two years prior to the series, Tetsuo killed his adopted mother (or rather, watched as he let someone else kill her) after getting into a fight with her over his transgender identity. Everyone thought 'Reiko' committed suicide, but actually ran away, started transitioning, and began living as Tetsuo.
