Once a month, Akihiro and Natsuki visit Natsuki's family to visit them. The family treats Akihiro, a newcomer, equally, and dinner parties with them are the "family" that Akihiro, who grew up in an institution, longed for, and it has already become one of his favorite things to do. ...Later, while his wife Natsuki is away at her parents' house on business, his mother-in-law Rieko suddenly visits the house. Akihiro greets her, but Rieko says something provocative: "Aren't you interested in older women?"...