Kiyo (Reiko Yamaguchi)'s husband is on a business trip and hardly ever comes home. Her son stays in his room all the time. Kiyo started consulting her father-in-law about household matters. He encourages her, but she indulges in self-pleasure due to loneliness. One day, Kiyo vented her frustrations with her husband to her father-in-law. Comforted by her kind stepfather, the two kissed and ended up having sex. Her son had been peeking from the hallway. Later, her son confronted and cursed at Yae before attacking her. Furthermore, when Yae was called to her son's room, she was made to promise 'anything' and ended up performing fellatio and having sex…
