Kaoru Sakazaki, 42 years old, a full-time housewife. Married for about 20 years, Mr. Sakazaki has lived a smooth family life without any inconvenience, but the turning point in his life came when he turned 40. A wife who met for the first time in a long time at a reunion and got excited with him when he was a student, and knew the taste of cheating for the first time. It seems that the stimulating pleasure and sense of immorality became a habit and they repeatedly met, but after all, they broke up because it was too risky for them to have families with each other. At that time, I saw an advertisement for an actress recruitment and thought, "This is a win-win!"