set in ancient Japan Ren and Touya are Kami twin brothers tasked by their superiors with helping the demon prince The demon prince was sealed away by the gods for his atrocious actions The demon prince is extraordinarily powerful comparable to that of a god, he is pretty, lithe, pale, has fangs, long white hair, his energy is strong and uncontrollable, in the past his father corrupted him and used him as a weapon against the other realms