Two years have passed since she got married and had a child... After she became pregnant, the relationship between the couple started to cool down, and now they barely even talk to each other, which makes her feel lonely. In an attempt to repair their relationship, she plans a trip to a hot spring just for the two of them, but her husband is so busy with work that he doesn't pay her any attention... While spending time alone, she hits it off with a man named Yamaoka who is there for work. Feeling lonely without being able to be in touch with her husband, she ends up having a relationship with another man. The heat of her body, wet with the pleasure of a woman, never cools down...