Five years ago, an ordinary girl named Elise saved a wounded mysterious man named Nico, and the two fell in love. However, Nico left without saying goodbye, leaving behind a ring. Five years later, Elise is unemployed and desperate. On the street, she accidentally reunites with Nico, an amnesiac gangster boss. Nico finds the ring. Although he doesn't remember her, he is deeply attracted to her and hires her as his personal secretary. He uses jobs, mansions, and resources as bait to gradually bind her to his side.