My wife was cheated on by a masseuse

Azusa has severe stiff shoulders and visits a massage parlor, but the masseuse there cleverly seduces her words and gives her an erotic massage using her outstanding sexual skills. Azusa, who had always been dissatisfied with her premature ejaculation husband, becomes addicted to her sexual techniques and ends up allowing her to even have sex. Later, Azusa, who wants to experience sexual skills again, invites the masseuse to her house and indulges in erotic acts, but her husband returns home. Although her husband is surprised, his excitement exceeds his anger, for some reason, and secretly peers at their actions.