Worried about her pregnant daughter-in-law, Rinka, the mother-in-law, came to the city from the countryside. I thought things would ease up between husband and wife with her support, but I ended up escalating my wife's anger by bringing up masturbation. Unable to bear the fact that I was the only one suffering, she even issued a ban on masturbation. A few days later, while I was feeling restless, I accidentally saw Rinka's naked body after her bath in the dressing room. Concerned about my unusual behavior, Rinka listened to my story in detail...