Su Wan, a concubine from the Su Mansion in the capital of Chu, lost her mother when she was young. She struggled to survive amidst the harsh treatment of her aunt and the schemes of her aunt, and secretly plotted with her stunning embroidery skills. In order to save his seriously ill younger brother, he was forced to marry Xiao Yan, the famous but cold-faced general of Zhenbei, for his eldest sister. From the cold reception on the wedding night, to the frame-up in the house fight, to the misunderstanding and sacrifice during the border crisis, the two were repeatedly pulled apart in suspicion and protection. When the truth about Su Wan's biological mother's premature death and Xiao Yan's long-suffering affection gradually surfaced, the past hurt and redemption, the righteousness of family and country, and the love between children will finally usher in a sadistic ending in a life-and-death disaster.