Fujita was ordered to escort his drunken boss, Houjou, home. There, he witnessed the scandalous sight of the boss's wife, Maki, secretly masturbating... However, Maki, who had been neglected by her husband and could no longer hold back, suggested, "If it's just rubbing," and they repeatedly reached climax by pressing their genitals together in a thigh job. Sharing a secret that could be told to no one, the two continued to secretly sleep together, and before long, their relationship developed to the point where they were rubbing their genitals together even inside her vagina...
