A widow named Saran, whose husband loved hot springs, used to go on trips with him and their son Takumi when he was alive. It had been a long time since they last went together due to her grief over losing him. Saran decided to take another trip with Takumi, hoping it would help them both remember happier times. However, unbeknownst to her, Takumi's company had gone bankrupt, his fiance left him, and he was at rock bottom emotionally. He couldn't bring himself to tell her any of this and instead joined her on the trip out of desperation for some comfort. As they traveled together, their loneliness led them to seek solace in each other's bodies, eventually finding themselves caught up in passionate encounters that helped them heal their wounded hearts...