Aishi Family

The Aishi Family are important characters in Yandere Simulator.

The Aishi Family comes from a very long lines of Yanderes. Most women in Yandere-chan's family want to give birth at a young age, like 19. Yandere-chan's great-great-great grandmother was born in 1910. She will be 107 years old in 2017. It has also been a family tradition for several centuries that when an Aishi woman marries a man, the man always adopts the wife's surname. It is most likely that there are no male yanderes in the family.

When a female Yandere is born, there are always slight differences between each generation, but each Yandere are not all clones. Their personas aren't more or less strong either. Yandere-chan's family isn't so close and once the women have found a male they don't usually spend time with others. Yandere-chan might've not even met most of her relatives. No one is on bad terms though.

Ayano Aishi
The main character of Yandere Simulator. She is the daughter of Ryoba Aishi.

Ryoba Aishi
The mother of Yandere-chan and the main character of 1980s Mode. She kidnapped her own Senpai and held him down in her basement.

Yandere-chan's Father
The Father of Yandere-chan. He was kidnapped and forcibly made a father through unknown means.

Ryoba's Mother
Through the basement tapes, it is revealed that Ryoba's own mother kidnapped her Senpai and kept him in the basement, implied that this the tradition of yanderes.

Miscellaneous
YandereDev imagines that Yandere-chan's great-great-great-great-grea-great-greandmother wore a bloody kimono and wielded a knife.

Trivia

 * YandereDev imagines all of Yandere-chan's ancestors with the same exact hairstyle, but that feels really goofy to him.