After discovering that her husband, who is away on a business trip, is cheating on her, she visits a brothel for women as a way to get revenge, but the person who shows up is none other than her son's friend, Yano!? She knows it's not an acceptable relationship, but after calling him, she finds it hard to refuse, so she ends up having a physical relationship with him, promising to keep it a secret... And the strong touch and hip movements of his hips, which she's never experienced before, make her climax countless times...