A couple who returned to their wife's parents' house. Yuu, a mother-in-law who brought shampoo to her son-in-law who was taking a bath that night, decided to shed her son-in-law's back. Yuu realized something in his son-in-law's crotch, which was greatly inflated, and began rubbing his erected crotch. Yu gently kissed her son-in-law, who was unbearably firing, and told her to keep it secret from her daughter. However, the son-in-law's excitement increases rather than subsides, and he spends the night on sleeping Yu. After that, the son-in-law and Yu steal the eyes of their daughter and seek each other's bodies, and finally they are exposed to their wives. Six months later. When I heard that my wife was going on a trip with a friend, my mother-in-law's face came to me first. When I noticed, I was sending an email to my mother-in-law. A few hours after my wife went on a trip, the chime of the house turned on, and when I opened the door, my mother-in-law stood embarrassedly and happily. Free points for the first 1,000 yen!