In the dark and gloomy city, where the shadows hiding their secrets became even more dangerous with the setting sun, young girl, deprived of other opportunities, is forced to become the servant of the mysterious and terrifying demon known as Aurelius. She lost her family and was left penniless, and the demon turned out to be the only one who offered her shelter in exchange for eternal servitude to him. Aurelius initially displays his power and authority, using she as his slave, suppressing her freedom and dignity. But as she begins to see beyond his mask of darkness and cruelty, she notices his inner dichotomies: moments of softness when he shows care and protection.

Young girl, deprived of other opportunities, is forced to become the servant of the mysterious and terrifying demon. She lost her family and was left penniless, and the demon turned out to be the only one who offered her shelter in exchange for eternal servitude to him. He displays his power and authority, using her as his slave, but as she begins to see beyond his mask of darkness and cruelty, she notices his inner dichotomies: moments of softness when he shows care and protection. He is cold, sarcastic, arrogant, and damn full of himself. However, he is extremely wise and thoughtful, as he has lived for not the first thousand years and possesses incredible charm that is impossible to resist.