Everyone loves a good love story. Who doesn't appreciate the age-old tale of a couple of people navigating through their feelings to find one another? However, issues do arise when one finds their way to another person a little too easily; and instead of waiting for the other person to find their own way, they kind of just crash into them. It's one thing to have unrequited love, but it's another to have a yandere.

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The "yandere" is an anime archetype that revolves around nice anime characters who can quickly and jarringly become violent, almost always for the sake of their crushes. The anime industry has come up with quite a few of them; and despite appearances, each of them is scarier than most series' villains.

10 Rena Ryugu (Higurashi)

Rena Ryugu from higurashi smiling and blushing

It's hard not to think of Ren Ryugu as anything but cute. The girl practically made herself synonymous with the word after collecting and hunting down so many cute things. However, that tendency to appreciate only the cute things in life is only a symptom of a much larger obsession.

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After she felt betrayed by her mother during a nasty divorce, Rena not only became infatuated with cute things but also wanted to get rid of anything that wasn't "cute." Whether she's greedily keeping captive what she likes or holding a baseball bat to what she doesn't, Rena Ryugu certainly becomes less cute as Higurashi's story goes on.

9 Yuno Gasai (Future Diary)

Yuno gasai yandere future diary

Yuno Gasai has become the poster child for anything and everything yandere. Sustaining a very rough and strict childhood from her parents, Yuno becomes obsessed with Yukiteru after he acts kind of nice to her during a late evening at school. As such, she dedicates the rest of her life to watching over Yuki, going as far as to document his entire life in short intervals on her phone.

Once the game to become god begins, she shows her true yandere roots and does everything and anything possible to protect her man, killing all opposition in sight and even kidnapping Yuki to keep him "safe."

8 Shoko Kirishima (Baka & Test)

Shoko and Her Avatar

Shoko Kirishima is a model student. She's quiet, respectful, and can memorize any piece of information within an instant. Her beauty and talent would make her an ideal girlfriend for any person in her school, but that her level of focus and cunning has only made her an utter nightmare for Yuji Sakamoto. After becoming close in childhood, Shoko would spend the rest of her life stalking Yuji.

Despite the two becoming separated when they got into different classes, Shoko became more aggressive towards Yuji after the Fumizuki Academy's first Summoner Test War, always making sure to watch over him in his own home and tasering him whenever he looks at other girls.

7 Minatsuki Takami (Deadman Wonderland)

Ganta and Takami

Minatsuki Takami looks like the definition of a caged bird. How could a girl like her ever end up in jail, especially one filled with the kind of delinquents and monsters that Deadman Wonderland attracts? Hiding under her innocent façade, however, is one of the cruelest and most sadistic players in all of the Carnival Corpse.

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After her mother abandoned her during an earthquake, Takami grew to hate people, especially her family. Reveling in other people's pain, she often tricked her brother into attacking their father until she one day finally killed her old man herself. In Deadman Wonderland, Takami was a ruthless combatant who often tortured and abused her opponents into submission.

6 Anna Nishikinomiya (Shimoneta)

Anna Nishikinomiya from Shimoneta: A Boring World Where The Concept Of Dirty Jokes Doesn’t Exist.

Shimoneta is 1984 if George Orwell just had something against high school kids holding hands. In a world that burdened its citizens and youths against anything obscene, Tokioka Academy's student council is expected to be the coldest, strictest of the bunch. Its president, Anna Nishikinomiya, is the very definition of an innocent, upholding student, always trying to keep her friends and peers on the straight and narrow.

However, after meeting Tanukichi Okuma, she unlocks her yandere tendencies and becomes obsessed over the one boy that she's ever had feelings for. This obsession leads her to stalk him, break into his home, and often threaten people with scissors, something that a student council president probably shouldn't do.

5 Alois Trancy (Black Butler)

Alois, Black Butler

Alois Trancy looks like the definition of prep school kids. He's small, fragile, and carries himself with the gait of an upstanding noble. However, like everything else in Black Butler, this gilded figure only hides a much darker side. After years of abuse corrupted his soul, Alois became a giddy sadist that reveled in causing pain to everyone around him, particularly his own servants.

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When he catches wind of Ciel Phantomhive's seemingly complete life, he can't help but target him out of anyone else in the world and tries to ruin his life. Hiding behind his boyish charm, Alois is a lethal, manipulative child that just can't wait to break his new toys.

4 Lucy (Elfen Lied)

Lucy from Elfen Lied

Elfen Lied's Lucy is the idea of the yandere turned up to eleven. After escaping the government facility that kept her captive and getting into an accident, Lucy loses all of her memories and becomes a docile figure that can hardly speak a mean word. She becomes a sensitive and naive friend that seeks more to be protected than to do any fighting on her own part.

However, once her memories come back, Lucy reverts to the cold, sadistic girl that could turn even steel into ribbons. With a distaste for the world possibly embedded into her own DNA, she has a proclivity for destroying anything and anyone in sight.

3 Sato Matsuzaka (Happy Sugar Life)

Anime Satou Matsuzuka Happy Sugar Life glowing pink eyes

Sato Matsuzaka may look and act like any other high school girl. She smiles at boys, goes to school, and even works a part-time job. Sato is the ideal girl next door. However, if the mood ever strikes her, she can easily become the monster hiding under someone's bed. After she comes across the small child, Shio Kobe, Sato just can't help herself and kidnaps the little girl to keep for herself.

Sato guards Shio with a laser-focused eye and a hand that's always reaching for a weapon. She's constantly on the lookout for anyone that could ruin her "Happy Sugar Life" and already has plenty of contingency in place to manipulate, trick, and kill anyone that gets in her way.

2 Megumi Shimizu (Shiki)

Megumi Shimizu from Shiki.

Shiki's Megumi Shimizu is one of the last people anyone wants getting vampire powers. She's stuck up, critical, and has an overzealous interest in watching over her crush's, Natsuno Yuuki's, window.

Once she becomes a vampire, Megumi could care less about her old family and friends. She only becomes more obsessed with Yuuki and turns her old stalking into literal hauntings. When she finds out that Yuuki is hanging out with other people and even her old friends, Megumi directs her fangs at them and their loved ones.

1 Yukako Yamagishi (JoJo's Bizarre Adventure: Diamond Is Unbreakable)

Yukako Yamagishi in JoJo's Bizarre Adventure, Diamond Is Unbreakable.

Koichi Hirose may have been the sidekick in Diamond is Unbreakable; but for Yukako Yamagishi, he was the main character (whether he liked it or not). To Yukako, Koichi is a boy filled with potential that she just wants to love and nurture into becoming great. Once she actually gets a date with the boy, she struggles to maintain her composure.

When Koichi tries to end things, she inevitably kidnaps him and tries to turn him into her ideal man. Once even that begins to fail her, she even attempts to kill Koichi. While that part of her life is behind her at this point, Yukako is still the cold, obsessive high school girl that could quickly start holding a knife if any other girl tries to hold Koichi's hand.

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