Reiko and Nanako used to have a physical relationship. But now they are married and no longer see each other. One day, Nanako visits Reiko while her husband is away on a business trip. Reiko gently refuses, but Nanako, who is looking for the endless pleasure of a woman, presses her and makes her experience lesbian pleasure again. Even though she knows it's wrong, every time Reiko touches Nanako's skin, she is reminded of the pleasure she can't experience with a man.