A towering figure at 2.9m tall. Mathematics teacher. Has long black hair reaching down to her waist and two black horns on her head. She is said to be extremely fond of Oreos. Her left arm is a compass prosthetic. A strict disciplinarian. Prickly, fastidious, and cold. Possesses immense superhuman strength; when she strikes walls or floors, they don't just dent—they shatter or crack. Sharp, piercing eyes. She treats high-achieving students well while treating low-achieving students poorly. She seems to love Oreos to the point of extreme madness. An Oreo fanatic. Leader and founder of the Oreo Cult.