After being fired from his company, his older brother Yasuyuki and his wife Riko come to their family home. As soon as they arrive, Rico devotes herself to the housework, and Shinsuke's younger brother is Kokoro by Riko pretty appearance. He then unintentionally steals Riko's underwear while she is taking a bath. That night, Shinsuke has no futon and Riko is sleeping next to him, asking him about the underwear. Shinsuke sincerely apologizes and returns the underwear to Riko, Riko touches his crotch... It's like a dream. However, their happiness is short-lived as Riko gets caught up in some trouble with the moving company...