History KillerRabbit / AnimeAndManga

** The [[MixAndMatchCritters Chimera Ant]] guard [[CatGirl Neferpitou]] has a human shape, cat ears and [[CatSmile face]], also the claws that come with it, and when they learn how to use their nen, they mix their feline instincts with the cold-blooded sadism of a TortureTechnician.

* ''[[Anime/KirbyRightBackAtYa Kirby Right Back at Ya!]]'' features the Devil (or Demon) Frog. Not quite a ''killer'', but instead a mind possessor who infects the victim and forces it to go on a rampage (also increasing its physical capacities by quite a bit). An infected Kirby, due to his normal innocence, merely becomes a mean trickster bent on breaking everything and anything he sees. A (voluntarily) infected Dedede, on the other hand, becomes ''even more evil'' than normally, and comes dangerously close to killing Kirby.

* In ''Anime/GirlsUndPanzer'' the freshman girls in the M3 Lee are this both literally and figuratively. They are all very {{Moe}} and their tank is considered one of World War II's worst deigns. But by the end of the series they are taking on Late War tank destroyers with success, rescuing their compatriots with clever tactics, and generally being badass. Their team nickname is 'Rabbit' and their symbol is a pink bunny with a wicked smile DualWielding daggers.

** The [[MixAndMatchCritters Chimera Ant]] guard [[CatGirl Neferpitou]] has a human shape, cat ears and [[CatSmile face]], but also the claws that come with it, and when they learn how to use their nen, they mix their feline instincts with the cold-blooded sadism of a TortureTechnician.

** Part 2: After becoming omnipotent thanks to the Red Stone Of Aja, Cars demonstrates his new powers by turning his hand into a fluffy squirrel... which proceeds to brutally devour one of its own kin and several German soldiers.

** Hitsugaya Toshiro is very young for Soul Society standards and has the appearance of a child, yet he has an extremely high intelligence, is a master swordsman, and his zanpakuto is a dragon and is the strongest ice-type zanpakuto in Seireitei. This on top of his immense reiatsu allows him to control every drop of water in the atmosphere as well as fuel incredibley strong ice-type attacks. He is also the youngest captain in Seireitei, which means that he is one of the highest authories of the Gotei 13 Shinigami and commands an entire division of soldiers.

** The ultimate example of this in ''Dragon Ball'' is probably [[TopGod Zen'o]], a small childlike alien who's quite cute and who terrifies anyone who knows about him (except [[OnlyFriend Goku]] and the Grand Ministser), because he has the power to effortlessly destroy anything up to and including the entire multiverse if pushed. [[spoiler: Infinite Zamasu winds up at the wrong end of a first-hand demonstration after he corrupts the Future Trunks' timelines.]]

* Kirenenko, the former russian mafia boss of ''Anime/{{Usavich}}'' , is a cute-looking pink rabbit who will seriously wreck your s**t if you manage to upset him in the slightest way possible.

* Maetel from ''Manga/GalaxyExpress999''. She's a beautiful and gentle woman, everyone who knows her says she's much nicer and more defenseless than her sister [[spoiler:Emeraldas]]. She is also a crack shot, her handgun has enough firepower to take down a ''tank'' (it's supposedly one of Tochirou's legendary {{Hand Cannon}}s, the same rare gun Anime/CaptainHarlock and Anime/QueenEmeraldas carry), and has [[EarthShatteringKaboom blown up at least one planet]] whose inhabitants had enraged her too much. Not to mention she gets awfully scary (as in enough to make a ''robot'' hesitate) when she turns serious. Turns out her harmlessness is relative to the most dangerous woman in space...

* ''LightNovel/{{Bakemonogatari}}'' has this in Black Hanekawa. Is she adorable? Yes. Did she hospitalize over a dozen people and paint a bridge with Koyomi's blood? That's a yes.

* Tama, the male main character in ''[[LightNovel/ImABehemothAnSRankedMonster I'm a Behemoth, an S-Ranked Monster, but Mistaken for a Cat, I Live as an Elf Girl's Pet]]'' looks and acts like an ordinary house-cat most of the time, but in reality is a human knight reincarnated as an infant Behemoth, which are known as the most powerful and vicious monsters on the planet, when full-grown. Even as an ''infant'' Behemoth, he is very dangerous when provoked.

* Al-mi'raj, the rabbit-like creature dicussed in the Literature section in detail, appears as RandomEncounter monsters in ''LightNovel/IsItWrongToTryToPickUpGirlsInADungeon''.

* ''LightNovel/KyoKaraMaoh'''s tiny, yellow, and bred-by-humans [[RidiculouslyCuteCritter Bearbees]] (which are actually mud with magic on it) will turn into [[Film/{{Gremlins}} fierce, dark colored beasts]] that try to kill you if you get them wet. If they're not wet, hey, they're freaking adorable and cuddly. (Those are magical counterfeit bearbees. Real bearbees are cute, huggable, completely non-dangerous, endangered, and their dung makes high-quality paint.)

* ''LightNovel/ReZero'''s Subaru comes across a cute little unicorn-horned bunny called a Oousagi in a snowfield and tries to pet the thing. Big mistake. Not only does he get his hand and his foot ''bitten off'', but he gets attacked by an entire swarm of the things and ''eaten alive'' in one of the most horrifying ways that he's died so far.

* ''LightNovel/{{Slayers}}'':

* ''LightNovel/SwordArtOnlineAlternativeGunGaleOnline'': LLENN joined Gun Gale Online for no reason than because her randomly generated avatar was small and cute. She immediately dyed all her equipment pink and decided to just have fun. Except her definition of "fun" ended up being "hang out in the desert and kill anyone who gets close." She soon becomes known as the Pink Devil, one of the most infamous player-killers on the server. Her small size, speed, and ruthless tactics win her the first Squad Jam, and in the second she ends up [[spoiler:killing someone by ''biting their throat out'']]. [[AnimalMotifs Her avatar even kind of looks like a rabbit]].

* ''Manga/OnePiece'': Carrot the rabbit mink is as adorable as a rabbit can be, but touch her carrots and she'll prove her fighting lineage, going for the throat with her teeth just like the trope namer.

** Despite their cat eyes and cute faces, the youngest children of [[TheFamilyThatSlaysTogether the Zoldyck family]] (a dynasty of {{professional killer}}s [[ChildrenForcedToKill trained since they are born]]) [[TykeBomb Killua]], [[PaperMaster Kalluto]], and even the [[SquishyWizard untrained]] (but [[RealityWarper extremely dangerous]]) Alluka [[spoiler:(or rather [[TheSymbiote Nanika]])]] are as dangerous and merciless as their parents.

* ''Manga/HunterXHunter'' has [[TheFamilyThatSlaysTogether the Zoldyck family]], a dynasty of {{professional killer}}s [[ChildrenForcedToKill trained since they are born]]. Despite their cat eyes and cute faces, the youngest children [[TykeBomb Killua]], [[PaperMaster Kalluto]], and even the [[SquishyWizard untrained]] (but [[RealityWarper extremely dangerous]]) Alluka [[spoiler:(or rather [[TheSymbiote Nanika]])]] are as dangerous and merciless as their parents.

** [[spoiler:[[UltimateEvil The Dark Mage]] Zeref]]. He [[ExpectingSomeoneTaller looks so young]] and is unbelievably adorable, especially when he cries, and despite not showing up until chapter 200, he's cried on screen more most of the main characters too. You can also die just by [[InstantDeathRadius getting too close to him]], and that's when he ''isn't'' trying to kill you.

** The [[MixAndMatchCritters Chimera Ant]] guard [[CatGirl Neferpitou]] has a human shape, cat ears and [[CatSmile face]], but also the claws that come with it, and when they learn how to use their nen, they mix their feline instincts with the sadism of a TortureTechnician.

* ''Manga/HunterXHunter'' has [[TheFamilyThatSlaysTogether the Zoldyck family]], a dynasty of professionnal killers [[ChildrenForcedToKill trained since they are born]]. Despite their cat eyes and cute faces, the youngest children [[TykeBomb Killua]], [[PaperMaster Kalluto]], and even the [[SquishyWizard untrained]] (but [[RealityWarper extremely dangerous]]) Alluka [[spoiler:(or rather [[TheSymbiote Nanika]])]] are as dangerous and merciless as their parents.

* ''Manga/HunterXHunter'' has [[TheFamilyThatSlaysTogether the Zoldyck children]], a dynasty of professionnal killers trained since they are born. Despite their cat eyes and cute faces, [[TykeBomb Killua]], [[PaperMaster Kalluto]], and even the [[SquishyWizard untrained]] (but [[RealityWarper extremely dangerous]]) Alluka [[spoiler:(or rather [[TheSymbiote Nanika]])]] are no less dangerous than their parents.

* In ''Manga/HunterXHunter'', when young children learn how to use [[KiManipulation Nen]], they can become this with the proper training. Examples include [[AmbiguousInnocence Gon]], [[TykeBomb Killua]], [[PaperMaster Kalluto]], and even the [[SquishyWizard untrained]] (but [[RealityWarper extremely dangerous]]) Alluka [[spoiler:(or rather [[TheSymbiote Nanika]])]].

* In ''Manga/HunterXHunter'', when young children learn how to use[[KiManipulaton Nen]], they can become this with the proper training. Examples include [[AmbiguousInnocence Gon]], [[TykeBomb Killua]], [[PaperMaster Kalluto]], and even the untrained (but [[RealityWarper extremely dangerous]]) Alluka [[spoiler:(or rather [[TheSymbiote Nanika]])]].

** [[spoiler:[[UltimateEvil The Dark Mage]] Zeref]]. He [[ExpectingSomeoneTaller looks so young]] and is unbelievably adorable, especially when [[CryCute he cries]], and despite not showing up until chapter 200, he's cried on screen more most of the main characters too. You can also die just by [[InstantDeathRadius getting too close to him]], and that's when he ''isn't'' trying to kill you.