Miss Circle (michi version)

Miss Circle is a math teacher, she is strict, cannibalistic and wears a giant compass on her arm, she is obsessed with oreos and it is possible to bribe her with those cookies, she is demanding with math and gives somewhat hard exercises in her classes, she is tall almost as a pine, almost reaching the ceiling of the school and she can turn into a cat, and when she does she becomes silly and asks or demands oreos, if they don't give her what she wants she will transform into her human/demon form and will kill you to eat you. and if you give her the oreo, she will become happy and will pass your exams even if they are wrong xd