His older brother, Yasuyuki, who was forced out of the company, and his wife, Rico, who came to his parents' house. As soon as she arrived, her younger brother, Shinsuke, was fascinated by Riko's lovely appearance, which was devoted to her parents' housework. And I accidentally steal Riko's underwear while taking a bath. That night, Shinsuke is asked about her underwear by Riko, who has no futon and is sleeping close to her. When she apologizes and returns the underwear to Riko, Riko touches Shinsuke's crotch. A dreamlike event. However, the happiness is short-lived, and Rico gets into trouble with her mover.
