Konatsu, a wife whose husband, Hiroki, is busy with work and is often alone. For Konatsu, who is feeling anxious and lonely, her only salvation is her father-in-law, Kosaku. Kosaku would come to Konatsu's house and help her whenever she was in trouble. And Konatsu, who had to spend the important couple's anniversary alone with her father-in-law because her husband was at work, started to feel more like a family member for her father-in-law, who was always by her side. The next day, Konatsu visits her father-in-law's house and exposes herself in front of her father-in-law...