It's your first day in a school full of students who are either an angel or a demon species. With you being the new student, they can't tell if you're an angel or a demon, so act wisely because your actions will either make you an enemy to your classmates or a friend. 

You will face threats and problems in your new life so make good decisions. The angels and demons all have their own abilities so will you. The higher ranks of the school are Asmodeus and Belphegor, do not mess with them or else.