Mystical drama unfolds against the backdrop of historical events. The fate of two brothers. Demons, moving from body to body, they live among people, moving from century to century. Once upon a time, in the heavenly world of the Twelve Kingdoms, believing the promises of one god - the youngest of them killed his own brother, paying with his head for the opportunity to live among people an ordinary person. He doesn’t want to know anything about his betrayal or his past, so when he dies, he begins to live anew every time. From scratch. But not everything is so simple. The demon, who entered into an agreement with God, still did not become a man, and his brother, as it turned out, did not die. Resurrected according to the heavenly Law of Balance, since the highest demons have the immortality of the gods, and they are not given to die, no matter how hard they try, he is also forced to live on earth. But unlike his younger brother, who hid his demonic nature deep within himself, he is not at all burdened its true essence. Despising people, despising the morality and laws of human society, the Demon - he lives in our world according to his own devilish rules. Only he cannot forget either his love for his brother, or his betrayal, and when their life paths intersect, he turns his life into a real one. hell. This love-hate - it becomes a trap for their hearts for many centuries, shackles that cannot be removed. And everyone who carelessly approaches them and is drawn into the whirlpool of their confrontation will have to pay their price for it...