The great demon, Anrimayura, who once plunged the world into chaos, has been resurrected in the form of a beautiful girl! The one who broke the seal and awakened her is a lonely exorcist...!? The reason she sealed the great demon wasn't for "power" or "money," but because she wanted "friends"…! Half-forced into a contract with her, Anrimayura begins attending the exorcist academy while hiding her true identity! Can the two of them complete their friend contract without anyone finding out!!??