Kazuo's son Satoshi brings his new wife back to the family home in Chiba from Tokyo. He soon realizes that the woman introduced as "my son's wife" is Hatsumi, a former delivery health worker he once frequented in Tokyo under the alias Hatsumi. Thus begins a life under one roof with his son, his son's wife—a former escort. How the relationship between the three will evolve promises an intriguing development.