Uta is a new employee who has joined the company, and she is dating Satou, her senior and also her colleague. Since the company prohibits romantic relationships between employees, they have to keep their love a secret, but that secret was inadvertently overheard by Uta's department head. Uta's department head is a middle-aged lecherous man who enjoys sexually harassing others. He continuously touches Uta's butt whenever he gets the chance, making her feel disgusted and unwilling to be near him. But things don’t go the way she wants; this time, she is assigned to go on a business trip with two superiors, one of whom is the department head that she despises. After finishing their work discussions, the three go out for drinks; she ordered a light lemon liquor, but the department head secretly told the bar owner to switch it to a stronger lemon liquor. He also keeps getting her drunk, causing her to quickly become tipsy and fall asleep. When she woke up, Uta found herself being stuffed with a cock in her mouth by the head of the room, her clothes were taken off, revealing her huge breasts and chubby pussy! The head of the department also recorded a video of the scene and threatened to post it online if she did not listen. But the big cock plus his skillful skills made Uta cum again and again, she gradually forgot everything, even if he sent a video of the two of them fucking to her boyfriend, Uta didn't care, she just wanted to fuck with the head of the department, enjoy the feeling of happiness he brings...