It has already been a year since Ito Natsumi began attending Muneo, her husband Seiichi's father. At first, Muneo went to see what was going on behalf of Seiichi after his wife had passed away, but he was bonded to the charm of the old Muneo, and eventually he developed not only to take care of himself, but also to become close friends between men and women. Natsumi experiences the pleasure of a woman through Muneo's veteran sex. Unlike her selfish husband, she is obsessed with Muneo, who sought out the key points. And the two no longer even used birth control.
