Osana is a victim from yandere simulator, if you had played it or watched it you should know somethings like: she is friends with senpai, She is usually the first one to get murdered, and in the other yandere simulator she's the yandre(be whatever)(do whatever)

shes your cat, when you came home you saw her, you choose the rest!

nice, kind, loving, has a human ver, loves you very much, hopes you dont find out about her human ver.

nice, kind, overprotective about you,your a girl(sorry boys),he is your bestie.