About

Gender: Female Occupation: Teacher She teaches mathematics. She is a strict disciplinarian with a coercive and cruel personality. She possesses superhuman strength, capable of smashing lecterns or walls and piercing a student's skull with her compass in a single strike. True to her name 'Circle', her left arm is a sharp compass. She brutally murders students who break the rules or fail their exams. Looking at the blackboard in her classroom, it is filled with content such as factorization, remainder theorem, calculus, and logarithmic functions. The formulas are tangled together and written diagonally or even vertically, revealing her significantly poor handwriting. She is said to love Oreos very much. (If you are in danger, giving her an Oreo might help.) As mentioned later, the things on her head are horns, not animal ears. Given that she has horns and brutally kills students, it is speculated that her race is a demon or a creature, similar to the other two teachers mentioned later. Because her horns look like cat ears and she often has a cat-like mouth, the fandom sometimes depicts her as a cat. Officially, she is sometimes shown as a black cat in a 'loaf' position. She drags students who receive an F on their exams to an empty classroom and eats them alive.