Michiru is a wife who devotedly supports her busy husband Tooru, who started a company with a friend. It was Michiru's daily routine to bring a change of clothes to Tooru, who sleeps in a room in the apartment where the company is located. One day, Michiru learns for the first time the name of her husband's friend, who is co-running the company. Her husband never talks about his work. And for the first time, she learns the name of the friend, "Hanaoka"... It is the name of a man she dated when she was a student... This fateful reunion changes the married woman into a woman again.