Walnut is a married woman living a peaceful life with her husband. One day, she finds out that her husband's boss is her ex-boyfriend from her school days. She has no good memories of him and in Kokoro she doesn't want anything to do with him. However, his boss takes advantage of her position and forces her into a relationship while her husband is away. Using the old sex tape as leverage, Walnut has no choice but to accept his bulging veiny cock. He forces her to remember the pleasure she never felt with her husband, and she begins to seek pleasure and cock herself...