Risshi, a housewife who lives in a quiet residential area in Tokyo. My husband, a doctor, was sent abroad as a member of the medical team two months ago and now lives with his son Kenji. Nobuko, a younger sister of Noriko who lived in her neighborhood, was unable to do her husband's work well and came to the house of Noriko with financial assistance. One day, Yoichi, a nephew living in Nagano, went to Tokyo on the occasion of his job in Tokyo and decided to stay there for a while.