Fuutarou Uesugi is a poor, antisocial ace student who one day meets the rich transfer student Itsuki Nakano. They argue but when Uesugi realizes he is to be her tutor, he tries to get on better terms. While trying to do so he meets four other girls.

In a world where beasts of all kinds coexist, a gentle wolf awakens to his own predatory urges as his school deals with a murder within its midst.