| Arika Shimizu
|Strength||Incapable of self-defense|
Arika wears the default uniform of the academy. She has got long purple hair with bangs. Her eyes are black. She wears bandages on her right eye for unknown reasons. Her bust size is 1.1.
Unlike her twin sister, she is a social butterfly. If she sees Yandere-Chan killing or carrying a body, she will screams to pay attention and she will call the police.
However, if Ayano kills her sister, she'll tell a teacher what happened. The next day, she'll not be here because she'll commit suicide.
- « Oh my god ! This can't be happening ! Stay away from ! »
- — Arika when she sees Yandere-chan killing or carrying a body
- « NO ! WHY DID YOU DO THAT ?! »
- — Arika when she sees Yandere-chan killing her sister
- People think that Arika and Asuna belong to the Occult Club because of their accessories.
- She had a crush on Sho Kunin.
- She is older than Asuna.