Inui

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 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.

Chika's father and the school vice principal. He attends the appraisal, helps explain sex education, and touches the girls' genitals.