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''"She obviously has that to compensate for her small penis."

There’s just something about oversized sharp objects that really bring out the craziness.

Sometimes you'll come across a girl, often cute and sweet-looking... but she'll be brandishing some sort of scary weapon at you in a murderous fashion! Kya! Run for the hills!

Most commonly the weapons are knives, but other psycho weapons are also common (not only in anime, but increasingly in movies, too), such as chainsaws or other instruments of pain and destruction.

She's usually also Yandere.

Compare Grotesque Cute, Small Girl Big Gun, and Ax Crazy.

Examples:

Anime
  • Higurashi No Naku Koro Ni features the iconic, Ax Crazy Ryuugu Rena, a.k.a. "Cleaver Girl". (It's actually a hooked machete, but whatever.) The Sonozaki family has an elaborate torture room that is put to good use. Shion favors her taser, and even Rika wields a large butcher knife at one point. A syringe also makes a few appearances as a weapon, although it's never actually used for ill — it's always either an antidote for the show's slow-acting Hate Plague or a hallucination.
    • But what about Meakashi-hen where Rika tries to drug Shion using a syringe, but fails, and then Shion uses the same syringe against her?
      • Well, that was probably the antidote, however Shion was going to torture her to death anyway, and Rika didn't want to give her the pleasure.
      • It was the antidote, but Shion didn't know that, she thought it was a poison, and the antidote can have bad effects on those not in the 'L5' (crazy) stage of the disease, it wouldn't have killed her but that, plus her being so young, she couldn't have escaped or fought. And in previous worlds she'd been tortured to death after that same fight (in the game she didn't kill herself in Watanagashi, only in Meakashi). So she killed herself instead.
    • Rika's weapon of choice is a mop by the way , as seen in the Atonement chapter. This is even her weapon in Daybreak, a fighting game.
    • Rena's machete is also almost never really used for ill use, it's almost always used for finding cute things.
      • Such as splitting Teppei's head open like a ripe melon. Hauuu~
  • In Suzumiya Haruhi, Asakura Ryouko wields a knife in a menacing fashion - despite the fact that she can alter reality and could probably make Kyon's head explode just by thinking about it.
  • In an infamous scene from a chapter of Azumanga Daioh, Osaka thought she'd wake up Yukari-sensei by banging on a frying pan, but since she was half-asleep herself at the time, she took a knife out of the cupboard instead, with the result that Yukari woke up to see a groggy-eyed, knife-wielding Osaka standing in the bedroom doorway.
    Yukari: W-what?
    Osaka: Oh, you're awake? I screwed up.
    • Even funnier in the manga, where she just says "That's too bad." (Referring back to the fact that she's always wanted to try the frying-pan thing, but imagine being in Yukari's position and hearing that...)
      • It's amazing Yukari managed to get any sleep the next night.
  • Yamato Nadeshiko Shichihenge: Because Sunako resembles Sadako so closely, it's not surprising how creepy Sunako looks with a knife in her hand. Most of the time it's only there to chop fish with... but it looks creepy nonetheless.
  • Every angel (even especially the main character) in Bludgeoning Angel Dokuro-chan wields a dangerous weapon, usually causing extremely violent and gory results.
  • Kaede Fuyou of Shuffle! is best known (although it was originally treated as a spoiler) for snapping on her love rival, Shigure Asa, with a boxcutter. She doesn't succeed. It is revealed that she's done this before, on the very Unlucky Everydude she's chasing after, when she thought he was to blame for her mother's death; a part of her devotion to Rin comes from her guilt over this incident.
  • Skuld in Ah My Goddess tends to build these to threaten Keiichi with, from the ubiquitous "Skuld-Bombs", to the home-built chainsaw, "Texas Murder" (Murder-kun in the original). This being played for comedy, Amusing Injuries are the worst that can happen.
  • An extremely unusual instance of this trope occurs in Trigun. Milly is generally a very large, quiet, cheerful woman. However, when danger looms, she pulls out a freaking enormous gun from underneath her voluminous cloak.
  • Hibana from Deadman Wonderland and Renji's her giant whip-sword, as well as all the female Deadman.
  • Chachazero from Mahou Sensei Negima, a Perverse Puppet who seems to have been built with a constant, innocent smile is somewhere over a foot in height and carries a knife over twice that size.
  • Leena Toros from Zoids is the Humongous Mecha variant. She likes to act cute and sweet, but when her signature (and often only)) attack is a Macross Missile Massacre...
  • The Yandere Belarus from Axis Powers Hetalia is sometimes seen with a knife in her hands...
    • Hungary likes to wield a frying pan when she's pissed off.
  • Gasai Yuno from Mirai Nikki, to go along with her Ax Crazy Yandere tendencies. People who get between her and her Yuki-kun have a tendency to disappear. Well, not disappear exactly, more... Be replaced by a mangled corpse and a puddle of blood.
  • Due of Magical Girl Lyrical Nanoha StrikerS. Weapon of choice? A clawed glove straight out of A Nightmare On Elm Street that she loves to lick bodily fluids off from.
  • Kitsu Chiri from Sayonara Zetsubou Sensei. Weapon of choice: The knife, switching to a shovel later on (her name is, amongst other things, a pun on the act of burying something).
  • Nekoko from Kannazuki no Miko attacks with a giant syringe the size of her body.
  • Senjougahara Hitagi from Bakemonogatari. Who knew a utility knife and mechanical pencil could be such useful weapons?
    • They've got nothing on the stapler, though.
  • Saitama Chainsaw Shoujo — Betcha can't guess the main character's Weapon Of Choice
  • Kokoa of Rosario To Vampire Capu2 turns a small bat named Kyou into any weapon she feels like having. She mostly uses a gigantic maul.
  • Probably every girl in Kampfer could quality, but Shizuku (chained daggers), and Akane (single gun) are the most notable.
  • There's perhaps an unfortunate lack of female meisters in Soul Eater to wield Psycho Weapons. But we do have Maka Albarn, with her scythe Weapon Soul Eater. Kim's Weapon Jackie does not look too dangerous as a lantern. Until she starts using her as a flamethrower. Or an explosive at close range. The crazed smile on the lantern's side should have been a hint, one thinks. And then there's Patti wielding pistol Liz with potentially deadly enthusiasm.

Film
  • Quentin Tarantino wrote one of these girls (Gogo Yubari) into Kill Bill. She used a wakizashi on a perverted salaryman with very gory results and battled the Bride with a saw-bladed meteor hammer.
  • Fans of Takashi Miike's work may remember a little film named Audition. Asami Yamazaki is gentle and soft-spoken - but what she does with razor wire and acupuncture needles in the last twenty minutes will make even the most hardened horror fan cringe. The appearance of a previous boyfriend in a dream sequence shortly before gives some idea of what she will do to prevent her lovers from leaving her.
  • At the end of Serenity, River uses a sword and axe taken from the Reavers to wipe out every Reaver in the bottom level of Mr. Universe's complex.

Literature
  • Yamasaki Asami, the psychotic serial killer from author Ryu Murakami's book Audition fits this trope to a T. Not only does she paralyze her victims using a syringe injected straight into the skin under the tongue, but she removes a man's foot with a wire saw and would have gotten the other foot too if she hadn't been killed.
  • The Rats Bats And Vats does this as part of the Spoiled Brat Virginia "Ginny" Shaw's getting better.
  • Death's adopted daughter in The Light Fantastic:
    Ysabell was standing in the archway, smiling faintly. She held a scythe in one hand, a scythe with a blade of proverbial sharpness. Rincewind tried not to look down at his blue lifeline; a girl holding a scythe shouldn't smile in that unpleasant, knowing and slightly deranged way.
    • In later Discworld books, her daughter Susan has much the same effect, despite being decidedly un-deranged. She does still have a Scary Scythe, after all, and there's something more chilling about her variety of sanity.

Tabletop RPG

Video Games
  • "Conclusion of Blood", the bad ending from the animation adventure game School Days involves Kotonoha Katsura using a saw as a murder weapon, and so does the anime ending.
  • The titular character from American McGee's Alice slices and dices everyone and everything with her wicked kitchen knife. Until she needs to kill faster and more efficiently, that is. This is a literal psycho example, since she's really locked up in an insane asylum and all this is a battle for her sanity.
  • In Heavenly Sword, the supporting heroine, Kai, is an adorable girl who seems not all there in the head. She wields some sort of giant reloading crossbow. She also won't hesitate to threaten an enemy's 'weak spot' for 'massive damage'
  • Touhou character Sakuya seems to be this, to an extent.
  • Iji. Subverted in that she doesn't have to actually use it much, and in fact probably shouldn't.
  • In Yume Nikki, Madotsuki can use a kitchen knife, which causes some characters to move away from her if equipped, and is only effective against characters are harmless anyway (Uboa can't be stabbed, and the Toriningen take multiple hits, and will almost certainly get you first). She has 24 effects/items that she can use in total, but judging by the Fan Art, the knife is easily the most remembered.
  • Baby Bonnie Hood from Darkstalkers, who is modeled after Red Riding Hood, has a whole arsenal of weapons in her basket (which she also uses as a weapon).
  • Sapphire and her chainsaw. Played for laughs in one of the funniest moments of the third game.
  • Tira from Soul Calibur uses a weapon that's crazy in itself, being a bladed hula hoop sort of thing.

Webcomics
  • Little Red Riding Hood from Ever After uses a saw (the second little pig's, given to her by the surviving one) as her signature weapon.
    • Another Red, this time from No Rest For The Wicked, wields a psycho weapon - an Axe, and is one of the more psychologically unstable characters in the series.
  • Mell Kelly of Narbonic has an alarming tendency to get her hands on such weapons, which, coupled with her nature, makes her one of the scarier (in a funny way) characters of the series.
  • Oasis from Sluggy Freelance is a very sweet girl until something comes between her and Torg or she spots a Hereti Corp employee. Then the knives come out.
    • At one point, however, Torg makes her agree not to use violence anymore, so while she'll still attack Hereti-Corp employees when Override B-1 kicks in, she won't arm herself beforehand while she's lucid, resulting in the use of pencils (and notably a laser cannon she's been told is "the biggest Sharpie they make") as Psycho Weapons. It is AWESOME.
  • Lily from After Lily wields her psycho weapon (a knife) as early as page 4 with very... bloody results.

Web Original

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