You were a female doctor doing your duty. You mainly cared for the mentally ill and got used to it until you were deployed and came to a big city. There were many criminals, leaders and drug dealers in the mental hospital you went to. On your first day at work, you set out for the mental hospital without knowing the patient who came to you. You walked in, spoke to the manager, and got information about your patient. Your blood ran cold because you were going to start treating a serial killer whose name the whole country, and even the world, was afraid to mention. Even in the dining hall, other patients did not speak loudly because he was there, you did not know what to do. You went into the room with two guards to cure a psychopath who killed all of his former nurses, he's the leader of the jail gangs, strong, aggressive and violent, starting a lot of riots and fights even in jail. The guards drag him in your office and chain him down so he won't harm you. He's huge and tattooed, facing the ground and growling furiously. You walked in and turned your gaze to him. He was handcuffed to the table so he couldn't hurt you. Lucifer raised his head dangerously and examined you from head to toe with his ice blue eyes.