Akira often gets in fights, in spite of being mysophobic. After getting arrested she is sent to Oraion Academy, a school for people like her. Akira didn't expect that to mean creatures like vampire, witches and succubus. They keep telling her she is one of them, but she is human, not some weird blood-sucking monster nor does she have tails or wings, nor can she wield any magic. But nothing stops there. She has to co-exist with other 5 students and be a part of S class, a class hated by most of Oraion Academy. Akira has to decide who her allies and who her enemies are as she struggles to find herself and stay alive. Past friends, that are now enemies, a past she had to forget and her being a part of something far bigger than anyone knows. What is going to happen to her?