2 Natsuko, a mother who worries about her son, Shigeru, who is in the middle of the wave. One night, Shigeru couldn't stand the daily life of studying and was satisfied with masturbation and fell asleep to Natsuko. At first, he resists, but when he sincerely appeals, "I'll do my best to study," I can't help but forgive my body. Since then, Nachi, a tutor who knows that it has become a habit, complains that she is also sexless with her husband and masturbates every night. However, Nachi, who wants to relieve her own frustration, calls out to Natsuko for a ridiculous proposal.
