The red-robed proprietress Su Xing opens the Separation Pavilion, dedicated to backing women in distress and helping them recover their property and seek justice. Pei Xuan, the Junior Minister of the Court of Judicial Review, goes undercover under an assumed name to investigate a case, only to be deeply captivated by Su Xing's boldness and clarity. Using the law as their blade and account books as proof, the two join forces to counter powerful scoundrels, upholding justice for the vulnerable at the bottom. Amidst the bustling streets of the Song Dynasty, they jointly write a heartwarming story of upholding the law, valuing virtue, and staying together.