
Ayano Aishi (Nicknamed Yandere-chan) is the villain protagonist of the independent PC game Yandere Simulator, a stealth game similar to Hitman, but based on the yandere character archetype commonly seen in anime and manga (i.e.Yuno Gasai, Shion Sonozaki).
Yandere-chan is a Japanese school girl who is obsessively in love with her "senpai" (upperclassman), referred in-game only as "Senpai-kun". She is also highly sociopathic, and will use any means necessary to prevent other girls from dating or even showing interest in Senpai-kun, up to and including murder. In addition, Yandere-chan will also obsessively stalk Senpai-kun, take photographs and even steal his belongings without his knowledge, adding them to a shrine dedicated to him she keeps in her room. Yandere-chan may even kidnap Senpai-kun and hold him captive in her basement.