Michitaro Sano’s wife passed away 18 years ago. Since her death, he has lived with his daughter Yumiko at their home. Now, Michitaro retires from his work. Yumiko though tells him to start doing housework. Michitaro is also surprised to learn that Yumiko has a boyfriend and is considering marriage. Michitaro is unsure how to handle his sudden abundance of free time. He then attends a local radio calisthenics group session..