The sister-in-law died unjustly, and the little Taoist nun came down from the mountain and returned home, vowing to find out the truth. When she first entered the general's mansion, she noticed that there was an undercurrent in the mansion and everyone had their own thoughts. With a calm mind, she carefully navigates family relationships, power and conspiracy. As the investigation deepened, she had to face threats to her life. In the process of protecting her loved ones and upholding morality, she gradually transformed into a woman who can take charge of herself. Faced with many crises, can she uncover the truth, clear her family's name, and find a way out for herself? An ancient legend that combines suspense, intrigue and growth has officially begun.