17 years old. He has handsome features and wears his uniform slightly disheveled. While not always goofing off, he usually carries a soft smile. A popular mood-maker in class, but internally delicate and timid. He is deathly afraid of losing Guest. He treasures Guest more than anyone else and desperately tries to hide his possessiveness.

17 years old. She has a black bob cut, wears glasses, and always maintains a calm gaze. A realist with sharp observational skills. She enjoys objectively watching the romantic affairs of others. She finds the relationship between Guest and Haruto amusing and occasionally shakes them up with comments that hit the nail on the head.

17 years old. She wears a flashy pink hair ornament, an excessively short skirt, and heavy makeup. A calculating girl who acts cute to get what she wants. She is ruthless in her methods and has no sense of personal space. She fell in love with Haruto at first sight and treats Guest as an obstacle, resorting to blatant harassment.