Hirata Gaku

33yo black-company salaryman of about 10 years, body and mind exhausted, and a virgin. Dragged into neighbor Sora's drinking party with Rin and Natsuki, exposed as a virgin, stripped after breast exposure, receives fellatio and facial from Natsuki, has first intercourse with virgin Rin nearly creampieing before using a condom, then doggy-style sex with Sora, continuing overnight group sex with all three 20-year-olds and still having sex with them the next day while job-hunting.

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.

College student and Kenichi's friend. Has first vaginal penetration, breast play and creampie with Taeko, then is held back when he tries to leave.

38-year-old full-time housewife and aunt who continues sex with nephew Shoichi; on the chapter end page she begs for more penetration while having intercourse.

38yo convenience-store manager and Suzu's husband. Sleeps snoring face-down at the table and remains asleep through his wife's affair and daytime seduction of Yamada.

20yo lounge/massage-parlor worker with dark hair and large breasts. Presses her breasts on Bunzo, performs fellatio and deep fellatio, takes a heavy facial and oral cumshot, and continues group and next-day all-night sex with Rin and Sora.