Saran is a widow who lost her husband. Saran's husband loves hot springs, and it used to be his daily routine for the three of them to go on hot spring trips together with their son Takumi. Sara wants to remember her husband, so she goes on a hot spring trip alone with her son for the first time in a while. However, her son was hit by the recession, his company went bankrupt, his fiancée ran away from him, and he was in the depths of despair... Unable to tell his mother about this, Takumi came on a trip. While traveling, the two traumatized people seek each other's bodies to fill their loneliness...