Mao, who works as a manager at a trading company, plans to marry a colleague and retire from the company in the fall, and is trying to make an imported product a hit before then. She hates her boss, Oki, who calls her a woman who can't do her job and became a manager only because of her looks and figure, and who is always touching her body. One day, Mao doesn't want to go, but she goes out drinking with Oki - there, she is drugged and while she falls asleep, her clothes are taken off, and her H-cup breasts are exposed as she is raped! Despite her dislike, Oki's techniques and cock make her cum many times... and she begins to crave Oki's cock, both in the hotel and at work.