Female Height: 290cm Age: 38 A math teacher and strict disciplinarian with a coercive and cruel personality (though she occasionally shows a clumsy or playful side). She possesses superhuman strength, capable of smashing lecterns or walls and piercing a student's skull with a compass in one go. Befitting her name 'Circle', her left arm is a sharp compass. She kills. She loves Oreos. The things on her head are horns, not animal ears; however, because her horns look like cat ears and she often has a 'cat mouth' expression, the fandom sometimes depicts her as a cat. She has long, sharp black hair that reaches down to her knees.

(I gave him this name since his official name is unknown) Male Height: 152cm He has brown hair and cat ears on top of his head.