Maruyama

The adult man who cares for Mana. He hosts the appraisal meetings, runs the sex-education lessons, and has sex with Mizuno.

A classmate who is the vice principal's daughter. A regular appraisal participant who spreads her vulva, receives fingering, and is penetrated by a classmate.

Akasaki Mana. After her parents died in an accident she lives with her uncle and joins the appraisal meetings, spreading her vulva, urinating on command, and receiving penetration.

A boy from the same class. Attends for the first time with Maruyama, receives Mizuno's sex lesson, and penetrates Chika.