Natsuko, who divorced her husband ten years ago, raised Tatsuaki single-handedly. Not wanting to make Tatsuaki feel sorry for her, she worked hard, and before she knew it, Tatsuaki was old enough to graduate from college. With this, I felt a sense of emptiness, as if there was a gaping hole in my heart, when I was relieved that my child-rearing was settled. As she feels lonely, Tatsumei invites her to a hot spring. Natsuko goes to the hot springs with Tatsuaki to relax at the hot springs once in a while.
