Shigotogaeri, Dokushin no Bijin Joushi ni Tanomarete

"Please... I want you to have sex with me." Haruhiko Sanezawa, a young employee at the company, is invited to a hotel after a drinking session with Yuuko Monou, his strict boss who is feared as the "Empress" of the company. Embarrassed, she has a request for a bewildered Sanezawa... "Would you be willing just to conceive a child with me?" It's the start of a relationship without romance, between a man and woman, which they cannot disclose to anyone. A face his boss can only show to him, with the rule that they cannot fall in love. And yet they are gradually drawn together... It's the start of a forbidden immoral adult love comedy! (Source: Kadokawa, translated)