After about a year of dating, Rumiko is happily married. She lives with her husband, Kenta, and her son-in-law, Mitsusaku. Mansaku, who is a bit like a mother's boy, was very happy that Rumiko became a new mother. One night, Mansaku peeks into passionate and intense sex between his father and Rumiko. My beloved mother-in-law, in a hailless appearance... A full work that indulges in masturbation imagining Rumiko's naked body. Rumiko peeked into such a son-in-law...
