He and his wife's mother, Eri, live together as a couple and have a good time together. On the weekend when his wife Hitomi was out at a class reunion, Satoshi, who was also drinking heavily, confessed to Eri that he had been interested in her since the first time he met her because she looked like his first love. In the room alone, Eri gradually accepts Satoshi, feeling lonely since her husband passed away.
