Lan Onezaki, a sultry OL, admits to using her feminine wiles to secure deals with older clients, awakening our narrator's curiosity. Cornering her, he discovers her secret and, in exchange for his silence, she leads him to her private lair. There, she strips and worships his cock with her expert tongue, then straddles him in reverse, her wet snatch sliding down his hard shaft. As she rides him, her moans fill the room, and when he can't hold back any longer, he fills her with his hot cum, their illicit encounter sealed with a promise of secrecy.