Worried about his pregnant wife, her mother-in-law, Rinko, came to Tokyo from the countryside. I thought that my mother-in-law would relieve my wife's stress, but my no-nonsense attitude was a disaster and made my wife angry. Furthermore, I was sentenced to a masturbation ban that I couldn't allow myself to get pleasure alone. - A few days after that, when she was sniffing Rinko's underwear in agony, she was spotted. Rinko, who was listening to our argument, wondered if I could take her place, perhaps out of guilt. I proposed ...