During the reign of Emperor Yizong of the Tang Dynasty, Huang Zixia, a world-famous female detective, transformed overnight from a talented woman in solving crimes to a murderer who poisoned her entire family and became a wanted criminal on the sea arrest documents. Li Shubai is a prince, but he is cursed with "widowhood, loneliness, and illness" and is unable to escape. When the emperor proposes marriage, the princess-to-be is acting suspiciously, and the "widow" curse is about to come true. Huang Zixia fled alone to the capital to redress her grievances. On the way, by chance, she met King Kui Li Shubai. Li Shubai, who discovered Huang Zixia's identity, agreed to help Huang Zixia re-investigate the murder case at home. In exchange, he asked her to investigate the mist surrounding her as a young eunuch of the palace. When the wind blows in spring, the lights dim, and when the rain passes, the passing years hurt. Li Shubai and Huang Zixia followed intermittent clues and traveled all over the world. To the south of the Yangtze River and to the north of the Great Wall, in the deserted palace village, at the end of various unbelievable unsolved cases, the truth is enough to overthrow the entire Tang Dynasty...
