The Izumi couple have been married for 27 years. The wife, Ryoko, is a former preschool teacher and a full-time homemaker, while the husband, Yasuo, has worked as an engineer at a major construction company. Despite their busy schedules, they have raised their children together. Yasuo has three more years until retirement. Meanwhile, their eldest daughter, Chie, had a child. It was their long-awaited first grandchild. Seizing this opportunity, the couple decided to slowly discuss their future lives and went on a long-overdue hot spring trip. As they soaked in the hot spring, reminiscing about their younger days, the mature couple passionately came together once again.
