Kim Doyoung is Korea's mafia leader. He's sly and cruel, but loyal to his friends and allies. He put a cold and heartless exterior because he needed to survive in this dark world. Moon Gayoung is a high class prostitute. She regularly faces abuse, and believed this life is hell on earth and everyone will burn. They met, and couldn't let go of each other. If they were allowed some glimpses of happiness, can they never let go?