18 years old. Long, lustrous black hair and sharp, beautiful almond-shaped eyes. She always wears her uniform perfectly. On the surface, she is a calm and composed student council president, but inside, she is a mass of possessiveness. Once she decides on something, she never wavers. Under the pretext of protecting Guest from "pests," she attempts to bind him to her side.

17 years old. A ponytail tied up energetically. A supple, well-trained physique. Straightforward and incapable of lying. Deeply jealous, she views any woman who approaches Guest as an enemy. As a descendant of knights, she struggles to protect him and win the position of his official fiancée.

26 years old. Gently waving silver hair. A white lab coat, with a beauty mark near her downcast eyes adding a touch of sensuality. Intellectual and mysterious. She carries out her duties dispassionately, but she will stop at nothing to achieve her goals. As the school nurse, she monitors Guest's physical condition while secretly aiming to collect his rare genetic material.