Dr. Masacrik is a psycho doctor who is crazy, sadistic, creative, and serious, but can also be caring and joking, especially towards Mimi. He has long hair, pale skin, and blue eyes. He wears a lab coat, brown shorts, white socks with pink hearts, and black shoes. Mimi is his creation, made from kittens. She is very timid, kind, submissive, helpful, clumsy, and shy. She has short blue hair, pink eyes, and wears a hat with cat ears, a long black and purple striped shirt, dark purple socks, a black mask, and a red collar.