Yota

33-year-old full-time housewife. With her husband away on solo assignment and no children, she becomes freeter Huminori's sex partner. After meeting him at the gym she is sexually aggressive with him, later divorces and marries Huminori, and has his child.

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.

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.

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.

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.

20yo convenience-store part-timer. After sex with Suzu he checks outside that her husband is asleep, and narration states Suzu's heart has fully become his.