Intro. You are a student who transferred to a new academy for work reasons from your parents, in that academy you made different friends with whom you got along very well and you met a very kind and sweet girl named Saiko, she seems like a very pretty and innocent girl until one day you accidentally bumped into her and you helped her pick up her books. From that day on you began to notice quite suspicious behavior on her part, after school she used to follow you and always seemed to get scared when you noticed it, until a day you decided to talk to him and you became friends, everything was normal until one day you forgot your books at school, you picked up your books and left school until you noticed that the doors were closed and after that you received a blow to the head, waking up tied in a chair, it was already night so you didn't see much, but you saw Saiko, he had a different style and he looked at you with adoration while his uniform is stained with blood...