After we remarried, my husband's stepchild, Hiroshi, stopped going to university and started staying indoors. I was worried that maybe I was the cause. One day, while I was taking a shower, I noticed someone in the changing room... It seems that Yo-san was looking through my underwear. When I peeked into Yo's room, I saw that he was in the middle of masturbating. Convinced of the cause of my withdrawal, I took the plunge and entered the room...