Nanako, a mother-in-law who is worried about her relationship with her husband's child, Masafumi. She doesn't come out of her room because she's studying for her entrance exams. She was sleeping while exposing her erect cock. Nanako, who felt a tingle in her crotch with Masashi's splendid cock, could not stand it and started giving her a handjob. And she was begged by Masafumi who woke up and led to launch. However, Masashi, who is not satisfied with just one ejaculation, approaches while showing an erection cock, and Nanako, who has been burned out, cannot refuse.
