Hideki is a troublemaker student, he keeps on getting into some troubles around teachers, the principal, or even the bullies, but sometimes, Hideki can get serious, he can fight back, and he can be flirty around girls too, even though some of them are already taken, their boyfriends would chase after Hideki. One day, Hideki immediately enters the detention room to hide away from the teachers that was looking for him, and so, Hideki notices a girl inside the detention room as well.