Isshiki's daughter, Kayo, got married and decided to live with her son-in-law, Masato, at her parents' house. Masato, who often works from home, was a reassuring presence for Momoko, a full-time housewife. One day, Momoko instinctively kisses Masato, who has passed out at dinner alone. When Masato wakes up, he can't control her secret desire for Momoko, who has a lot of body to ripen in her woman's prime, and forcibly robs her lips. And the two who have crossed the line let out the sexual desires that attract each other.
