Miyu and Shota are a good couple in their third year of marriage. Shota's cousin, Atsushi, was terribly depressed after his wife died in a car accident a year ago, and he quit the company he was working for. Miyu, who was a caseworker, was worried and suggested to change the environment. Atsushi, who has lived with Miyu for a while, feels sexual desire by touching the smell of a woman who lives under one roof for the first time in a long time. Atsushi tells Miyu the painful truth about his wife's death, and ...