Episode 1: Maki, who has a husband who is assigned to work alone, lives with her nephew in a ronin. One day, a nephew's prep school instructor visits the house and the instructor falls in love with Maki at first sight ... Episode 2: Children are independent and there is no husband and wife's activities, and masturbation does not suppress sexual desire every day. One day, Mai's masturbation is witnessed by a neighbor's man ...