A female office worker troubled by her inadequate boyfriend falls into the arms of her admired superior, transforming into a woman through an affair filled with cuckolding. Driven to climax repeatedly by the virile and highly capable man, she becomes utterly captivated by his charm. "I can go round after round with you, Hikari," he laughs, as she loses herself completely. With far more powerful thrusting than her weak boyfriend, she is filled with his semen eight times in one night. This shocking sexual encounter lays bare his incredible stamina. Even her pleas of "At least use a condom!" only serve as proof of his overwhelming passion.