Mother Natsuko Kayama, Nachi Kurosawa JUC-802 who is troubled by her son, Shigeru. One evening, Shigeru caught in the night crowded every day of study so I could not go gaman and I am satisfied with masturbation and sleep. At first it will resist but forgive himself as if he appeals seriously as "I will try my hard work." Nachi, a family tutor who knew that it was a habit since then, complains that myself is masturbating every night with her husband and sexless. However, Nachi wanting to resolve his own frustration calls Natsuko a ridiculous proposal.