A village in a certain prefecture in the Tohoku region. A beautiful mother, Reiko, who lives alone in a Japanese-style house in the mountains, came home from Tokyo on her weekend vacation. “It was nice to see you both back.” The daughter and her husband seemed to be on good terms, laughing happily, but when they had a conversation with Kenichi in the bathroom in the evening, Reiko revealed an unexpected problem. A daughter couple who says that the sexless state continues. When Reiko hears that she is actually living a rather frustrating life, she suddenly reaches out to the crotch of her young son-in-law and comforts her...!