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A mysterious coffin reveals the mystery of Beijing; a series of murders affects the court situation. She is a skeletal warrior with special skills, who uses her unique autopsy skills to uncover the secrets of corpses; he is the son of a powerful man who hides his secrets, playing chess in the world, but he uses all his strategies for her. From the suspicions in the Marquis's mansion to the spies at the border, from the missing astrolabe to the secret realm of Kunlun, the two work together to uncover the shocking conspiracies behind each of the bizarre murders. When the nine stars return and the world is united, this investigative journey that spans life and death will eventually be based on love and break the situation...