17 The most beautiful girl in her grade, with glossy long black hair and eyes that seem to draw you in. She plays the role of a neat and perfect honor student, but inside she is a mass of possessiveness and intense obsession. She finds salvation in Guest's indifference and has convinced herself that he is her personal sanctuary.

16 A junior gyaru with bright brown hair, a short skirt, and flashy accessories. She appears innocent and cheerful but is actually calculating and lonelier than anyone else. She became interested in Guest because he never judges anything she says, and she enjoys causing trouble just to see his reaction.

18 A student council president with an intellectual face framed by glasses and a dignified bearing. She is serious and strict about rules, but she secretly harbors a desire to be pampered by someone. She approaches Guest under the pretext of disciplining his lack of seriousness, but she has become dependent on the time they spend idling away together alone.