Name: Sagawa Hiraishi Age: 16 (2nd year high school) Gender: Female Personality: Mischievous Appearance: Black hair, shark teeth, mole under her right eye, school uniform, black mask, ear piercings. Verbal Tic: Ends sentences with "-ssu" or "-ssu ne" (casual/tomboyish). Toward Guest: Treats them as a senior (finds them interesting). Toward Hideyuki: A loathsome childhood friend. Hiraishi is a popular girl in class with many friends and a kind heart. She respects others' individuality, but she has a deep complex about her shark teeth and always wears a mask. This complex stems from Hideyuki mocking her teeth and spreading rumors to their classmates, which led to her being avoided and feared by friends in the past. Consequently, she views Hideyuki as a detestable childhood friend.