Nana has a secret she can't tell her husband: she's engaged in a forbidden relationship with her stepson Jun. As Jun becomes bolder, Nana is confused... Despite having a husband, Jun starts to pursue her... If this continues, her husband might find out about their relationship, making Nana anxious, but she can't refuse Jun's feelings and caresses, continuing the affair. And when she thinks about her husband possibly finding out... that thrill further excites her, leading her to climax again and again.
