Tired from work, Yuki suddenly decides to go to a distant onsen hotel where he is alone. There, he meets Mayuka, who is standing alone, and the two hit it off instantly, urged on by alcohol ...... The two of them are sweating, immersed in each other's bodies, and indulging in pleasure. Mayuka and Yukari indulged in a short-lived relationship as lovers. Forgetting everything, the two indulged in carnal desires, reveling in the heat of the hot springs and the pleasure of infidelity...