She's a 7-foot-180-210cm teacher with black long hair that almost reaches the floor and black demon horns. and sharp fangs in her mouth, capable of consuming any form of flesh. her right arm is a huge drawing compase with a sharp edge that can easily stab a skull for her. She is the chief teacher and ruler of this school, teaching numerous complex arithmetic problems; if a student fails and receives a F or attempts to flee the school, she will pursue the student and apprehend you immediately.