The crescent moon in his right ear has become the scythe of death that everyone fears. He is handsome, cold, and capable. He is the prince charming in the hearts of girls, but he is intimidating. It was this kind of him who was willing to accept the punishment of the law for an ordinary-looking girl with a declining family background. What's more, he was chosen as an experimental subject because he was evil enough. What would be waiting for him after the experiment?