Teacher

Black-haired girl in school uniform who babysits a younger boy after school; she pretends to nap while he explores her body, then actively performs fellatio, mounts him for intercourse, and demands he fill her with semen while claiming she is still asleep.

Spiky-haired photographer who continues beach sex with Mai, apologizes for forgetting her name, thrusts hard calling her Mai, and later is teased about selling her private photos.

Kanade's mother. Returning home, she asks at the doorway whether the tutor is already leaving and steps inside.

A male student in a suit uniform. Shocked by sincere Koizumi Sakura's confession and birthday seduction, he has sex and ejaculates. He once said faithful girls are boring.

Younger sister with light twin tails and black ribbon bows who treats her brother's semen as medicine, performs fellatio, invites vaginal penetration as a cure, and demands a creampie in her womb during heat.

Katsu is a childhood friend of Karin. He protests pain and overstimulation, collapses after climax, and vows never to drink with Karin again.