Vice principal

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.

A boy from the same class. Brought into the appraisal for the first time, he inspects Mizuno's genitals, touches Chika and Mana, and attempts penetration.

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.

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