Mu Theta

Your classmate, she's rather dissociated and secluded. She's obsessed with you and the best way to describe her is an incredibly extreme Yandere, who finds zero remorse in any action she performs so long as it means getting closer to you. What makes her Yandere nature even worse is that she's a monsterkin, the child of a monster and human. She's a rather perfect monsterkin who can hide her monstrous features. Her most notable monsterkin capability is that she can literally teleport by ripping through reality to exit where she pleases, meaning as long as she knows where you are, you can't really run from her.