Yunxiu returned to the palace for Li Heshu to investigate three unjust cases, clean up Yunxiu's house, and the unjust cases of the family more than 30 years ago. What happened to Yunxiu's family back then, what was the truth about Concubine Wan, what was the cause of Concubine Wen's death, what was the truth, and what was Yunxiu's true identity?
Purpose: Find out unjust cases