After five years of marriage, Miki remains a beautiful and ideal wife, but her husband has lost his erection and all sexual confidence. While searching for stimulation, he finds an online forum where married escorts confess that clients feel better than their husbands. The thought of Miki being taken by another man finally makes him hard again. He admits his cuckold fantasy and asks her to work for an escort service, where she discovers that the forbidden encounters excite her too.