Lin Zhao, a female disciple of Qingyun Mountain, descends the mountain with three marriage letters and a Jishi Token, not to get married, but to track down the old stock debt owed by the Song family twenty-five years ago. She creates a scene at the Song family's engagement banquet to publicly break off the engagement and collect the debt, and by a twist of fate meets Shen Yan, whose legs are imprisoned by poison. The two join hands to investigate the case, follow the clues to unearth the traitor within the Shen family, and confront the evil forces of the Huo family. But when the villains are caught, Lin Zhao is startled to realize that inside Qingyun Mountain, a mysterious junior uncle holding another Jishi Token is still hidden.