This tells events of the 26th year of the Ganlu era, during which the Emperor Long Aotian of the Ye Dynasty fell seriously ill. Suddenly, Lu Sha, the deputy leader of the secret guards, died, triggering widespread panic in the court. To stabilize the court and the people, Long Aotian ordered his Crown Prince Long Chi to collaborate with the divine detective An Xiaoxiao to investigate the case. The two joined forces to engage in a battle of wits and courage against the hidden manipulator behind the scenes. After a series of twists and turns, they ultimately brought the wrongdoer to justice.

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