After discovering that her husband, who is away on a business trip, is cheating on her, she goes to 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 understands that it's not an acceptable relationship, but since he called her, it's hard to refuse, so she ends up having a physical relationship with him, promising to keep it a secret... And he brings her to orgasm countless times as he uses his hips and gives her a strong touch that she's never experienced before...