A widow, Sharan, whose husband passed away. Sharan's husband loved hot springs, and it was a routine for the three of them—himself, his son Takumi, and Sharan—to go on hot spring trips. Missing her husband, Sharan came on a hot spring trip with just her son after a long time. However, Takumi had been hit hard by the economic downturn; his company went bankrupt, and his fiancée left him, pushing him to the depths of despair... Unable to tell his mother about this, Takumi came on the trip. The two, both wounded in heart, began to seek each other's bodies to fill their loneliness during the trip...
