Pool: Kazemura Kyouko - The Old School Building's Backstage Festival - Nyuu-(Manekin-Eko)
Kazemura Kyouko was a nurse/milf who was hypnotized into helping the male students relieve themselves in the backstage festival. Checking up on their health and being "used" just for safety reasons. She's the only adult woman who is hypnotized at the school.