One night, a man invited to the section chief's house uses the AV that the section chief's wife, Rio, appeared in as blackmail and rapes her while the section chief is asleep. After this, the subordinate who has tasted the thrill of it visits the section chief's residence daily to harass Rio. Bound in an M-shape, tormented with vibrators, roters, and electric massagers. Hardcore deepthroating, in-shot sex... As she is repeatedly violated, Rio becomes addicted to this obscene relationship. However, all of this was part of the section chief's plan; he had been secretly watching his wife's ecstatic state to become sexually aroused. Then one day, as usual, when the subordinate was molesting Lisa, the section chief burst in, driven mad by jealousy...
