The Takeuchis have been married for 25 years. Rie, a former nursery school teacher, is now a housewife and supports her husband Ippei's business. Ippei is a successful businessman who started out as a manager at an izakaya restaurant and built a major shabu-shabu chain called "Buta Hakushaku" in one generation. Despite their busy schedules, the couple have worked together to raise their children. Now that their children are both independent, the couple decide to take this opportunity to have a long talk about their future plans and go on a trip to a hot spring for the first time in a long time...