"Hire me. Business will boom if you hire someone with a face like mine." A suspicious new employee arrives at a shabby pub. He lives in a tiny studio apartment, yet he carries himself like a prince who owns the world. Why is he so confident despite constantly making trivial mistakes? Ji-woo, the pub manager, can't help but be bothered by him. "Noona, did you see that guy's car? It's a supercar worth over a billion won." As expected, he's strange and suspicious. Ji-woo doesn't want to admit she's attracted to him, but he keeps provoking her with his playful tone. "I told you, everything I have is on the larger side." "How could you possibly understand a body that even I don't fully understand?" Then, one day, he kisses her with a gaze of unfathomable depth. "Date me for a month. Properly." A strange secret romance begins with a suspicious man. Will she be able to end it safely after a month?