Su Banxia is reborn with the blood feud of two lifetimes and vows to protect her sister and avenge her. Relying on her formidable strength and foreknowledge, she arranges to marry Xiao Heng, the Prince of the Northern Frontier, in another woman’s place. She uncovers the truth: his cousin, Shen Guanlan (Xiao Yi), was mistakenly poisoned by the emperor and is secretly serving as a spy for the crown prince. The four of them join forces against the royal court’s deadly favor and the crown prince’s schemes. Using the military authority granted by ancestral law to break the deadlock, they protect one another amid the power struggles and vow to expose the bloody truth.
