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." Despite this, I know that he's simply a wolf in sheep's clothing! The "suite" love between the super sadistic hotel manager and the airheaded IT President.