Two years have passed since Taro and Sumire, an office worker, started their married life as a working couple... Taro is a little frustrated that Sumire doesn't do her housework properly. Then, one day, Sumire is hospitalized with gastroenteritis. During that time, Sumire's mother Kanae comes to Taro's house to help with the housework... Taro is shown the "domestic" side of Kanae, whom he hasn't seen in a long time. And Taro begins to feel feelings for Kanae that go beyond those of a "mother-in-law"...