Based on the intrigues of the Great Xia Dynasty and the indifference and cruelty of the feudal family, it tells the story of Gu Jinghan, a killer who carries a blood feud with his family, and Su Wanxin, a concubine trapped in the quagmire of the Yongning Marquis Mansion. Due to an unexpected redemption encounter, they go from being wary of each other, using each other, to gradually seeing the scars in each other's hearts. Finally, in the turbulent power struggle and family grievances, they break free from the shackles of fate and complete the story of two-way redemption. It deeply exposes the darkness of the dictatorship of powerful ministers under feudal autocracy, the injustice of the superiority of concubines in aristocratic families, and the struggle and choice of human nature among hatred, interests and warmth.