Matsumaru, a top sales performer and highly respected at his company, is in a tense mood with an important business meeting coming up. The taxi that picks him up is late, he has to take a detour due to a traffic accident, and on top of that, the fare is high, so he's been getting his hands on a lot of people... Frustrated with the incompetent taxi driver, Matsumaru instinctively throws money at the driver, and the man, enraged, suddenly accelerates the car and stops it in a deserted alley. The man attacks Matsumaru in the back seat, ripping off his clothes, secretly taking pictures of him in an indecent pose, and playing with his lower body... Matsumaru jumps out of the taxi and takes refuge in a nearby building, but the man pins him down in a dimly lit, dead-end basement staircase, forcefully rapes him in the open, and mercilessly cums inside him... Matsumaru, who had been knocked unconscious by a punch to the stomach, wakes up to find himself in the man's room. Her unruly legs, thrashing in fear, are tied up with hemp rope, and she's forced to orgasm in a humiliating frog-like position. Her engorged pussy, made to orgasm so many times it drives her crazy, is destroyed by the caresses of a vibrator, and she starts wetting herself! Under the same roof, Matsumaru is turned into a sex slave, toyed with by a perverted man, and is reduced to a submissive bitch, dominated by fear and tension. When she is awakened by a urine-drinking play in which she receives the filthy man's urine in her mouth, she desperately begs for penetration with her bound and crippled body! She thrusts out her ass, where the man's handprint remains red from a slap, and trembles with pleasure as he penetrates her with his big dick... Matsumaru, whose body has become so depraved that she can't live without the dick of this man she cursed so harshly in the taxi, is driven wild by his big dick, and her life seems to fall apart with happiness!!