Kanamo, who divorced ten years ago, raised Kouta single-handedly. To prevent him from feeling pitiful due to being in a single-parent household, she worked tirelessly and supported him through university graduation. Before she knew it, Kouta had secured a job after graduating. As child-rearing came to an end, Kanamo felt empty without her goals. It was then that Kouta invited her on a hot spring trip, and the two set off on their graduation trip together.
