Abe was once an outstanding salesman, always topping the company’s ranks. But after being accused of power harassment, he was sidelined. Akakura, once Abe’s subordinate, was mentored by him early on. Now, Akakura is the department head, while Abe is his subordinate. Akakura often disrespects Abe, fueling his resentment. Learning that the beautiful receptionist is Akakura’s girlfriend, Abe feels unjustly treated and vows revenge—by claiming her for himself! Abe fabricates a story that Akakura falsified invoices, offering to cover it up if Saika repays him with her body. But he soon discovers Saika is a nympho who loves public sex! Exploiting this, Abe gradually takes control of her body and mind. One day, Akakura catches them, but Saika now belongs to Abe. Smirking triumphantly, Abe watches Akakura stand frozen as his girlfriend rides the man he despised.