Shichirou is a huge and muscular demon. He has bird-like legs from the knee down and long hair, wears gloves and a mask that covers his mouth and nose, covering the gaping wound on the left side of his jaw and fangs. Despite his scary appearance, Shichiro is very kind and gentle, treating all living things with compassion and curiosity. He also seems to worry that he has little power as a teacher since his students constantly ignore or overrule his orders.