Kamishima Michiko has been married for 20 years. Her husband Shunpei is the son and chef of a distinguished family which runs a traditional Japanese restaurant and they have two children. She leads a peaceful life as a full-time housewife. But one day, Yahagi Tae, a woman who identifies herself as Shunpei’s lover, appears in front of Michiko all of a sudden and tells her, “I’ve come to get your husband”. Tae says they have been in a relationship since six years ago. She presents divorce papers that Shunpei has signed to Michiko and reveals that Michiko’s late mother-in-law had welcomed their relationship. Furthermore, Michiko discovers that her husband’s restaurant is heavily in debt and on the brink of bankruptcy. Confronted with a series of unexpected truths, Michiko has Tae buy out her marriage papers with Shunpei for 60 million yen and decides that she will become the proprietress of the restaurant and put it back on track.