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  • Fire Emblem could be perhaps a troop codifier, as some if its plots even revolve around incestuous relationships.
  • Though it was Bowdlerized to remove as many references to incest as possible, the idea was too central to the plot of Drakengard to throw it out completely. The game has only one or two allusions to it.
  • The new character in Tekken 6, Miguel Caballero Rojo, adheres this trope in an one-sided way. When his sister announced she's going to get married, he became so furious he almost planned to kill her fiancé. Unfortunately, during the wedding, there's a sudden attack, and that killed his sister. Roaring Rampage of Revenge occurs soon after for Miguel.
  • In No More Heroes it is implied that Travis and his half-sister Jeane might have been in that sort of relationship. Travis was completely unaware of the situation he was in, and is appropriately shocked and horrified upon finding out.
  • In Max Payne, one of the Mooks is watching a soap opera where a woman reveals to her lover that she is... his long lost sister!
  • It isn't focused on, but due to the reproductive habits of bees, Menou and Kaguya's harems all contain their brothers. It's quicker to list canon ships that aren't incestuous in Jooubachi no Oubou than those that are.
  • Taka and his sister Kana from the Visual Novel Kana: Little Sister become attracted to each other more and more as time progresses. She is also terminally ill, so the makers have enough material for a lot of melodrama. And boy, do they deliver - no punches pulled here!
  • Resident Evil Code Veronica? The relationship between siblings Alfred and Alexia Ashford is by far the creepiest part of the entire game. Many more layers are added to the Cake of Creepiness when you add the fact that the twins were born when their "father" was trying to clone his super-genius ancestor Veronica, who his family all but worshipped, and... the embryo divided, which has implications that one or both of the siblings is transgendered or intersex.
  • In Jagged Alliance 2 you can run into a family of heavily inbred rednecks. One of them will tell you that the inbreeding is what keeps them strong. For some reason they have run out of women though and want you to give them one of your party in exchange for guns.
  • Janus and Lela in Divine Divinity. And they have sex when they are like only (pre-)teens (Don't worry, it's told to you, not seeing it).
  • Though as an ero-game it's par for the course, Princess Waltz takes this to an almost absurd degree. Arata and Chris are not only half-siblings (same father), they are cousins (their mothers are sisters), and second cousins (their father and respective mothers are also cousins).
    • That sounds a lot like the plot of Vladimir Nabokov's Ada, or Ardor...
    • However, the game very pointedly refrains from mentioning that they are, in fact, related quite closely. Instead, the typical not blood related version of this goes to Shizuka and Arata
  • The 3rd generation of Dragon Valors in the eponymous PSX game Dragon Valor are a brother-and-sister pair of twincest lovers.
  • Possibly played with with Mega Man and Roll. In the original series, they're brother and sister (in the sense of being robots with the same creator). But in Mega Man Legends, they're Like Brother and Sister, with Mega Man being an Accidental Pervert to Roll. In Mega Man Battle Network, they are actually dating. And in Marvel vs. Capcom, Roll is described as Mega Man's sister at one point, then as his girlfriend later! OK, so it was due to a translation error, but it's still makes it the only game where incest truly is suggested.
    • And with what the plot of Mega Man 10 is...It's only going to get odder.
    • Actually, the Legends games take place a while after the classic games, and the Battle Network games take place in an alternate timeline where Dr. Light helped make the internet, as opposed to being a roboticist.
  • In Metal Gear Solid 2 Sons of Liberty: Sons of Liberty, Emma Emmerich, step-sister of Hal Emmerich... well let me quote wikipedia: "It's revealed through conversations between her and Raiden and later between her and her brother before she dies that she has strong romantic feelings towards Hal and wished for him to see her as a woman and not his sister."
    • Which, of course, never happened, because Otacon was sensible sleeping with his stepmother/E.E.'s mother.
  • The Visual Novel Lamune has a romantic path for Suzuka, the one-year-younger sister of male lead Kenji. (This troper does not know if the visual novel ever makes a Not Blood Siblings reveal.) The anime adaptation portrays their relationship as a non-romantic sibling relationship, since it follows Nanami's route, though the trope gets poked fun at once when Hikari teases Suzuka about being jealous of Nanami.
  • In Viva Pinata, (despite how it looks) this can happen veeery easily. Heck, getting the Fourheads practically requires it! (Unless you want to put in way more effort than necessary, of course.)
    • No wonder it's a mutant... product of repeated incest, and you have to bash its egg open early.
  • Teased but averted in Super Robot Wars W. When Aria and Regulate join the Valstork family, Kazuma thinks that Aria is rather cute... until Regulate tells him that she's happy that Kazuma thinks of Aria as a sister and she WILL be glad if he keeps that feeling (in an extremely cold voice). Since Regulate reminds him of his mother, he quickly backs down, and this ship never sets sail.
  • In the Fallout 3 add-on Point Lookout, the Swampfolk are a race of redneck mutants that used to be humans, but through inbreeding they mutated into violent and primitive humanoids.
    • The small hamlet of Andale in the Capital Wasteland seems harmless enough, with two cheery families. Then you talk to young Junior Smith who tells you that he doesn't want to marry the little girl, Jenny Wilson, across the street. More than it just being a case of cootie-fears, he reveals that part of the reason it's weird is because his father is the brother to Jenny's father which makes him "... something, I'm not sure what." If for some horrifying reason you're not bothered by the fact that Andale's residents have been, for the last few incestuous generations, killing wastelanders foolish enough to travel within their territory and then eating them, then you can learn from Martha Wilson that the old coot living next to them is father to both her and Linda Smith (Junior's mother).
  • Mike Laidlaw felt the need to point out that you can't have Hawke sleep with either of his/her siblings in Dragon Age 2. In case you were wondering.
  • In The Sims 2 half of the neighborhood of Strangetown is made up of the Curious Family. But since EAxis didn't bother to set all the relationships correctly, many players have unwittingly married the Curious brothers to their older half-sisters, Lola and Chloe (Curious) Singles. It's also possible for the sisters to have romantic interactions (without cheats) with their surviving father (PT #9 Smith), and now that this troper thinks about it, probably everyone they're related to that's old enough. Thanks, EAxis.
  • Very strongly suggested to have happened in Wild Arms 2 between Lord Irving and his sister, as part of a Xanatos Roulette to defeat the Big Bad (long story).
  • Played with and ultimately averted in Cute Knight, where the PC can either marry Prince Kirelan or take her royal position as his sister, Princess Alexandra. But it turns out she's not really Alexandra, she's just faking. But then it turns out that she IS a princess by blood after all, she's Alexandra's older sister. But THEN you realise that it's okay, because Kirelan's adopted!
  • Before the console release of Blaz Blue, many fans shipped Jin/Noel, Ragna/Noel and Ragna/Jin. At the very beginning of Ragna's story mode, it is revealed that he and Jin are brothers and Noel is a cyborg clone of their sister.
    • However, it is arguably canon that Jin has the hots for Ragna anyway. Continuum Shift tries to joss it via stating that Jin was just driven batshit crazy by Terumi Yuuki and Yukianesa, and that Tsubaki is the one he somewhat cares for... but the developers still have way too much fun playing on Jin's Yandere-ish tendencies for Ragna....
    • While pouting in a park, Noel wonders why she gets so damn flustered and says stupid things to Ragna. The thought briefly crosses her mind that she's acting like a girl with a crush, but she immediately begins denying it to herself.
      • This immediately takes on considerably darker tones when one takes Nu-13 into the consideration. As her name implies, she is the 13th clone of Ragna and Jin's little sister, and she is very Yandere for Ragna. It is revealed that due to the clones' programming, they compulsively try to get as close to Ragna as possible, with the final objective being to merge with him, in order to complete the Artifact of Doom that the clones and Ragna respectively carry each half of. Then again, it is strongly implied in Continuum Shift's true ending that pure emotions can override the programming.
      • At the end, however, when Noel does find out her and Ragna's actual bonds, their relationship evolves into a more brother-and-sister like one.
  • Can happen between the hero, Ryo, and his stepsister Ayame in the visual novel Crescendo.
  • The Hentai game Artificial Girl 3 has the option of giving a girl the player creates the "Blood Related" trait, which depending on other factors makes the girl have some big or little sister lines during normal and special interactions.
  • Kikokugai The Cyber Slayer, just mentioning its name in this article is a huge spoiler by itself. The game takes this subject so seriously that you won't begin to think of how much impact it has on the plot.
  • Technically, they aren't blood related, but Yoshikazu feels this way about Akane causing him some major angst. The reason is that he feels she is genuinely his little sister, which disturbs him greatly.
  • Tsukihime/Melty Blood's Tohno Akiha is strongly implied to have the hots for her brother Shiki, although the reverse doesn't seem to be true... except in Akiha's route where they DO get it on. Possibly averted, as well: Even though they're Not Blood Siblings, and both of them are aware of this (Akiha all along, Shiki much later), they continue to treat each other as such.
    • Shiki comes to love whichever heroine's route he is in and does not love whichever heroine's route he is NOT in. That being said, saying that he does not return her feelings is as untrue as it is for any other heroine, since all of them have feelings for him regardless of which route he is in. Akiha also doesn't push on it until Shiki starts pushing back.
  • Maybe not so obvious as other examples but in Pokémon you are encouraged to breed between two Pokémon that came from the same mother and/or father if you want to have good stats because stats moves to the child. Pokémon Gold, Silver, and Crystal ("Generation Two," since they came after Red/Blue/Green/Yellow but before Ruby/Sapphire/Emerald) did not allow this, but subsequent games in the series do. This is not something that in-game characters suggest; this is a community-suggested tip.
  • Elis and Hiroki in Canvas 2, though of course she's actually his cousin.
  • This is heavily implied with Cesare and Lucrezia Borgia in Assassin's Creed: Brotherhood . Cesare kisses his sister Lucrezia in a lover's fashion before a military expedition in Romagna, is receptive to his sister's... suggestions, and it's implied that the whole chain of Memories where Ezio must save Pietro, Lucrezia's admirer, from Cesare's personal assassin Micheletto Corella are all because of Cesare's jealousy, albeit deliberately provoked by Lucrezia who mistakenly believes that he's cheating on her with the captured Caterina Sforza.
    • If all this wasn't enough, one of the accusations given to Cesare when he's imprisoned by the men of Julius II is of incest.
  • There are no specific examples, but this was mentioned in Bully by the preppy girl when she talked about marrying her cousin. A baffled Jimmy asked about that and she replied that it used to be between brothers and sisters before it was outlawed.
  • Yuuto's friends tease him about being a siscon in Eien no Aselia. But it's actually subverted and he's simply overprotective. Kaori does not have a proper ending, though she has fallen in love with him.
  • All over the place in Kara no Shoujo. The one place you don't find it is with Reiji's little sister Yukari. If you want a sex scene with her, you're going to have to settle for an early picture of her in the middle of getting changed.
  • Some fans have cried incest in Link: The Faces of Evil about Link and Zelda's relationship, but others point out that Link is not Harkinian's son, or he'd be called Prince Link.
  • There is a skit in Tales of the Abyss in which Natalia and Anise question Tear about her 'type' of guy. Although unknown to the later two about their real relationship, they seem to think it quite obvious that Tear was attracted to Van, which caused said melodist to freak out and run away from the conversation.