From Fujoshi Bitches:

“Five-star luxury hotel “The Three Sails.” I’ve come to this hotel for only one reason. To get my revenge against him, my old childhood friend, Mima Takashi.
This sadist demon now works in the service industry without a care in the world. As part of my revenge against the man who once bullied me, I ask him for every unreasonable request I can think of, and in return, he simply gives me an elegant smile and says: “It is my pleasure to serve you, dear guest.” But I know that he’s simply a wolf in sheep’s clothing! The “suite” love between the super sadistic hotel manager and the air-headed IT President.