Kenichi

29-year-old glasses-wearing married neighbor. With husband on a trip and child at her parents, she visits Hine at night with leftover dinner, seduces him braless, then kisses, fellates, has vaginal sex and takes a creampie. Their affair continues; after husband and daughter leave she lifts her skirt, shows semen dripping from her crotch, and invites him again.

25-year-old factory senior coworker with glasses; married to Fumina; lends his wife to junior Namino for sex, watches from outside the room, then joins a threesome including anal and vaginal sex until late night.

38-year-old married apartment landlady. After years of a sexless marriage she cheats with other men; when tenant Goro catches her she offers sex for his silence and becomes his partner. She repeatedly takes creampies, visits daily, and joins a gangbang with Goro's friends.

24-year-old freeter and virgin with a large penis; reunites with elementary classmate Misaki, is taken to her home for his first sex, creampies her, then walks out with new confidence and is invited home by junior coworker Kokone.

28yo full-time housewife and Mano's wife with large breasts and a ponytail. Continues sex with Yamada while her husband sleeps, spreads her semen-filled vagina in climax, and is narrated as having fully claimed Yamada's heart without leaving her husband. Later lifts her sweater to bare her breasts and invites daytime sex.

Kenichi's married mother. Continues vaginal sex, breast play and creampie with Yota, tries to make him her exclusive sex partner, and keeps having sex while her son sleeps.