History Yandere / FanWorks

[[AC: ''WesternAnimation/AdventureTime'']]
* ''FanFic/{{Alex}}'': The titular character to [=PB=].

[[AC:''Manga/DetectiveConan'']]
* In ''[[https://www.fanfiction.net/s/7181244/1/Heartache-s-Child Heartache's Child]]'', a woman kidnaps Conan and keeps him prisoner because she's under the delusional belief that he's her missing son (it's an IdenticalStranger situation), and Conan's attempts prove otherwise fall on deaf ears. [[spoiler:Eventually, it's revealed that the woman never had a son in the first place. She's a mental patient who believed her doctor and his son were her family, who she eventually killed when they tried to defend themselves against her]].

* In ''[[https://m.fanfiction.net/s/12398970/6/ Remnant's Bizarre Adventures Chibi]]'', [[JojosBizarreAdventures Yukako Yamagi]], like in canon, is this to Koichi Hirose. Though UpToEleven as she traveled to another universe after discovering ''another'' Koichi is dating Neopolitan.

* [[Darthwiki/NewDawn New Dawn]] has three of these:

[[AC:''VideoGame/TouhouProject'']]

* ''[[http://www.fanfiction.net/s/5725656/1/Fate-s-Favourite Fate's Favourite]]'' has an odd ([[FoeYay allegedly]]) platonic example where a teenaged Tom Riddle [[TimeTravel from 1942]] becomes very possessive and obsessive of Harry. [[ForTheEvulz At first because Harry is interesting]] and later because he counts Harry as the [[OnlyFriend first real friend he's ever had]] (on account of Tom being [[TheSociopath a clinical sociopath]] who generally just uses people and doesn't feel anything for anyone but himself but he feels something for Harry.) This is {{Lampshaded}} by other characters who take to referring to Tom as Harry's [[GayBravado "jealous boyfriend."]] Tom mentions in passing that he's more than willing to watch the whole world burn if it means he can spend more time with Harry and [[MurderTheHypotenuse he will eliminate]] any perceived threats that may come between them.

* In the GenderFlip ''WesternAnimation/MiraculousLadybug''/''[[Franchise/TheDCU DC]]'' fic ''[[https://archiveofourown.org/works/26042395/chapters/63330202 Paris Monsieur in Gotham]]'', Adrianne beings to suffer from the side effects of the Cat Miraculous due to not being perfectly compatible, making her extremely territorial of Marcel. It gets to the point that Adrianne seriously considers using [[OneHitKill Cataclysm]] on Dahlia ''several times'' out of pure jealousy.

* Lucien Rebois in ''[[https://archiveofourown.org/works/27236230 Heart Thief]]'' is Marc's [[PyschoExGirlfriend jealous ex-boyfriend]] who was overprotective and clingy when the two were together, up to and including isolating him from his friends and beating up anyone he believed had a crush on Marc. It got so bad that Marc had to switch schools just to get away from him, and even that solution was tempoary due to Lucien unknowingly transfering to the same school.

* After a [[LoliconAndShotacon young Naruto]] manages to awaken emotions in the previously emotionless Mikoto Uchihia in ''[[https://www.fanfiction.net/s/11893710/1/A-Dark-Obsession A Dark Obsession]]'', she becomes absolutely obsessed with him, eventually [[spoiler:killing off most of the Uchiha Clan when she felt that they were getting in the way of Mikoto and her "little spiral"]].

* ''[[https://www.fanfiction.net/s/13013248/1/Zero-of-The-Black-Crusade Zero of the Black Crusade]]'' has Julius vi Britannia, the estranged twin of Lelouch that was taken by V.V.. In an interesting twist, his obsession is one towards Marianne, wanting to have her for herself after being separated from her by V.V., keeping her nearby by putting her in a coma.

* ''[[https://archiveofourown.org/series/1576453 Protective 'Friends']]'' has Luka, and eventually Adrien, becoming dangerously protective of Marinette after becoming akumatized.

* [[GenderFlip Pudding]] in ''Fanfic/CastleOnePiece'', in contrast with his female canon self, develops genuine feelings for Sanjina, and wants to have her for himself. He goes along with the Big Mom Pirate's assassination plan in hopes of letting Sanjina live while the Vinsmoke Family perished. He even sabotage the Straw Hat pirates attempt to rescue her so they won't take her away from here.

* In ''[[https://www.fanfiction.net/s/13464355/1/Clementine Clementine]]'', Madara Uchiha starts to fall in love with Sakura (who traveled back in time to prevent the deaths of her comrades in the future) and uses his Sharingan to suppress her memories of the future, allowing her to live as his wife. He is dangerously protective, ranging from wanting to keep her safe in their home while she is pregnant with their third child to encouraging his sons to torture and kill a vendor that sold a box of clementines (which he intended as a gift to his wife) which secretly contained rotten fruits.

* In ''[[https://www.fanfiction.net/s/13464355/1/Clementine Clementine]], Madara Uchiha started to fall in love with Sakura (who traveled back in time to prevent the deaths of her comrades in the future) and uses his Sharingan to suppress her memories of the future, allowing her to live as his wife. He is dangerously protective, ranging from wanting to keep her safe in their home while she is pregnant with their third child to encouraging his sons to torture and kill a vendor that sold a box of clementines (which he intended as a gift to his wife) which secretly contained rotten fruits.

* [[GenderFlip Pudding]], in contrast with his female canon self, develops genuine feelings for Sanjina, and wants to have her for himself. He goes along with the Big Mom Pirate's assassination plan in hopes of letting Sanjina live while the Vinsmoke Family perished. He even sabotage the Straw Hat pirates attempt to rescue her so they won't take her away from here.

[[AC:VideoGame/Persona5]]

* ''Fanfic/TheManyDatesOfDannyFenton'' (''WesternAnimation/DannyPhantom'', WesternAnimation, [[{{Series}} TV Series]], and ComicBooks.): A none-violent example is Meg Griffin towards whomever she dates, which includes Tucker. She stoops to stalking him and hacking into the dating website so he can't reject her.
** Another examp example is [[WesternAnimation/{{Animaniacs}} Katie Kaboom]] towards Danny, who worries that she is one of these.
* In ''[[https://archiveofourown.org/works/25745260 Sword to Ploughshares]]'', an [[VisualNovel/FateStayNight Artoria]] [[CompositeCharacter combined with]] [[LightNovel/MyNextLifeAsAVillainessAllRoutesLeadToDoom Catarina Claes's]] personality earns [[BrotherSisterIncest Morgan Ley Fay's affection]] thanks to being a CluelessChickMagnet. Morgan first tries to get Artoria for herself through [[TheBabyTrap making Mordred ]], but when Artoria embraces Mordred as her child, Morgan decides to kill [[IfICantHaveYou Artoria and most of Camelot before losing her life]].

* Owlman from ''[[https://www.fanfiction.net/s/10071646/1/Forever-Evil Forever Evil]]'' grew obsessed by young Richard Grayson, coming to see him as the brother he ought to be and killing everyone posing a slightest threat for their relationship. When the youth got killed, Owlman decided to recreate him by abducting his AlternateUniverse counterpart whom he brainwashed and drugged to be more like the original Talon.

* In ''FanFic/DumbledoresArmyAndTheYearOfDarkness'', Hannah Abbot (Neville's future wife) tries to set him on fire and then throws several potted plants at him (one of which suffocates him to unconsciousness, while she does nothing to stop it). All this because of a bad case of PoorCommunicationKills leading her to believe he was making out with Ginny--even though Hannah and Neville aren't even ''dating''. Either [[ValuesDissonance this is supposed to be justified by the "fact" that]] [[UnfortunateImplications girls are just crazy like that]] or [[EarlyInstallmentWeirdness a bit of comic SlapStick horribly clashing with the deadly seriousness that violence is portrayed in the rest of the fic]]. It is possible that this is a {{continuity nod}} of sorts to the scene where Hermione sets a flock of conjured birds on Ron, albeit a ridiculously over the top one.
* ''[[https://archiveofourown.org/series/901269 The Dark Trio]]'' gives us [[spoiler:[[OriginalCharacter Sapphire]], a muggle girl seven years older than Harry whose family took him in when he was just a little kid living on his own. While at first, Harry was oblivious and was just happy to being living in such a nice home, he slowly became aware of Sapphire's obsessive affection for him when she confined him to the house, began [[WhyDidYouMakeMeHitYou hurting him when she got angry]] (even branding him), and ultimately raped him (which averts DoubleStandardRapeFemaleOnMale)]]. Even years after he left, she still sends out enforcers to bring him back.

* ''[[https://archiveofourown.org/series/1193564 Don't touch [=MJ's=] stuff]]'': All of the girls [[EvenTheGuysWantHim (and some guys)]] at Midtown do their best to avoid Peter Parker like the plague. This is not because he's unattractive or unpleasant by any means (on the contrary, he's noted as prime boyfriend material); it's because '''everyone''' is afraid of what [[TheDreaded Michelle Jones]] will do to them if they try to make a move on the boy she considers "her property". The only person who isn't afraid of her is Peter himself, and that's only because [=MJ=] will do whatever it takes to ensure her crush (and later boyfriend) remains blissfully ignorant of her more darker qualities

** And this is to say nothing of how [[spoiler: Andrea Rourke]] is turning out from her previously innocent protrayal as Joey's ShrinkingViolet {{Tsundere}} Type B friend. [[spoiler: And as of 'Over The Edge,' she's ''officially'' proven just how fatal her love is]]. Even more disturbing is that when Joey returns from being kidnapped ''again'' he's going to be in for a nasty surprise.

* ''Fanfic/TheChildOfLove'': Subverted. Rei is pretty jealous of Asuka but she is not mad with her and does not want to hate her. On the other hand Asuka is jealous of AND mad with Rei, thinking she wants to steal Shinji away. At the beginning she treats Rei hostilely… until she calms down and realizes she is just being irrational.
* ''Manga/{{Evangelion 303}}'': [[OriginalCharacter Saburo]] broke up with Kaworu and regretted it later. However Kaworu does not want him back so Saburo resorts to lash out against his perceived rival- Rei- and stalk Kaworu. He shows up in Kaworu’s house uninvited, he gets angry and jealous when Kaworu spends time with Rei… He knows that it is wrong and he should step out of the way, but he does not know how to.

* ''Fanfic/ThousandShinji'': Deconstructed with, of all people, [[EmotionlessGirl Rei]]. After [[AntiHero Shinji]] [[BattleCouple and]] [[FieryRedhead Asuka]] [[RelationshipUpgrade got together]] she realized her feelings towards Shinji. At the beginning [[IWantMyBelovedToBeHappy she just tried to be happy for Shinji]], but she got increasingly obsessed with Shinji and she yearned for getting Asuka out of the way. It got so bad that she often dreamt of killing Asuka. Still Rei restrained herself, thinking that if she killed Asuka, Shinji would hate her forever and kill her or, worse still, he would kill himself.

* ''[[https://www.fanfiction.net/s/11754595/1/Blood-and-Ink Blood and Ink]]'': Cinder becomes enamored with Ruby after the latter opens a flower shop across the street from the former, and makes it clear to everyone that Ruby is her's. She even goes as far as to send Roman to attack Yang when Cinder believes that she'll become a threat to her blossoming relationship with Ruby (and also because Yang was the detective who lead the raid on one of her bases). [[spoiler:[[DownerEnding The story doesn't end well for Ruby]]]].

* Darth Vader in ''[[https://www.fanfiction.net/s/13422699/1/Missing-and-Presumed-Dead Missing and Presumed Dead]]'' is a paternal version towards his son, Luke. After Luke managed to escape from him on Bespin, he began desperately pursing him by any means necessary, including kidnapping and torturing members of the Rebellion for information. When he learns that his son is dead (not really, just [[FakingTheDead faking it]]), he goes on a RoaringRampageOfRevenge. After he learns that Leia is also his child, he kidnaps her to make sure that she doesn't die like his son did. Yoda considers this a natural reaction of any Dark-Side users.

* Yukari was a maternal one in [[http://www.fanfiction.net/s/9413166/1/Mine-newer-version Mine]] towards Reimu, who is, at the time, about one and a half years old (ergo, an infant), and was more than willing to take Reimu to the grave with her, literally. Her reason for this was because she was Reimu's wet nurse and, in breastfeeding her, grew attached and didn't want to give her back to her birth-mother (the then shrine maiden), as she's cared for her since birth and sees herself as being Reimu's mother, ergo she is more than willing to kill herself and Reimu, too, just to keep 'her baby' from being taken from her, making her Type 1: Possessive. However, she is a mild one as she would have only killed herself and Reimu too as a last ditch effort but her willingness to do it at all shows her attachment and exactly how unwilling she was to let Reimu go. Of course, she only said she would but, if she fled and Ran still continued to chase her down further, it would be likely she would have gone through with it or fled to the Outside World, though the former is more than likely than the latter.
** Definately played to a minor maternal sort in [[http://www.fanfiction.net/s/9505957/1/Touhou-MAMA Touhou MAMA]], a crossover of the Touhou Project and the film {{Film/Mama}} where Yukari, playing the role of Mama/Edith Brennan actually does take Reimu to the afterlife with her just to keep from losing her, with Reimu, playing the role of Lily, happily going with her "Mama". As a matter of fact, when Reimu is taken to be with her family, Yukari decides she wants none of it and is not going to allow anyone to take her 'child' away from her without raising hell first, thus it escalates to her spriting people away and causing Gensokyo to descend into a panic over the events.

* ''[[https://www.youtube.com/watch?v=7mMPyEQ_0AY Bad Girl]]'' is a FanAnimation [[MultiAnimatorProject MAP]] where Spottedleaf is yandere for Firestar. After her death, Spottedleaf becomes upset thar Firestar has moved on from her. She slowly begins killing off his loved ones (including [[MurderTheHypotenuse personally killing]] Firestar's mate, and her own niece, Sandstorm) so that he'll pay attention to her.

** And the last is Katherine Daille. Consider that she is actually mentally ill, mostly caused by ''positively hideous'' abuse by her father and brother. Matthew was the only "steady thing" / "safe thing" in her life, and he defended her many times from bullying from school boys all the way into high school. As a result, she became hell bent on trying to secure her position as his girlfriend so she can get out of her house and get into his. She rapidly mentally declines as more women enter Matthew's life "threatening her love" or so she thought. She is a very sympathetic Yandere, but also the most unstable one in the book. It probably doesn't help that her Spell Core power involves summoning horrifying demons that exist to kill people...

* ''[[https://archiveofourown.org/series/1193564 Don't touch [=MJ's=] stuff]]'': All of the girls [[EvenTheGuysWantHim (and some gay guys)]] at Midtown do their best to avoid Peter Parker like the plague. This is not because he's unattractive or unpleasant by any means (on the contrary, he's noted as prime boyfriend material); it's because '''everyone''' is afraid of what [[TheDreaded Michelle Jones]] will do to them if they try to make a move on the boy she considers "her property". The only person who isn't afraid of her is Peter himself, and that's only because [=MJ=] will do whatever it takes to ensure her crush (and later boyfriend) remains blissfully ignorant of her more darker qualities