2 Natsuko, a mother who worries about her son, Shigeru, who is in the middle of the wave. One night, Shigeru came to Natsuko, who was satisfied with masturbation and slept because she couldn't stand her daily study. At first, she resists, but when she sincerely appeals, "I'll do my best to study," I will forgive her body. Nachi, a tutor who learned that it has become a habit since then, complains that he is 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.
