Emiko, who divorced her husband 15 years ago, raised Tatsuya single-handedly. Not wanting to make her feel sorry for her mother and child, Emiko worked hard and Tatsuya was able to graduate from college. After graduating, Tatsuya got a job at a beverage maker, and his humble but happy days continued. Meanwhile, Emiko complained about her physical condition. She invited Emiko to a hot spring, saying that Tatsuya had been pushing himself too hard and wanted him to take it easy for a while.
