Nao

Kana's male teacher. He protests at first, then climaxes from her fellatio and intercourse and ejaculates into her womb.

A schoolgirl with round hair ornaments and a sailor uniform. She performs fellatio on her teacher, has vaginal sex, receives a creampie, and offers anal sex before transferring schools.

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.

Karin is a childhood friend of Katsu. She rides Katsu, moans and climaxes while semen leaks from their joining.