In the thirteenth year of the reign of Emperor Zhaozhao, an unknown old case stirred up the situation in Beijing. Lu Zhiyao, the commander of the Jingchatai, is in charge of the Jingchatai and seeks the truth based on physical evidence and laws; Sukan Cheng Xiao Linchuan is under the Suwei Division and carries the emperor's secret order to secretly investigate the undercurrent. The two had conflicting ideas, and were forced to work together to investigate a series of mysterious cases. They tested each other in layers of fog, and gradually turned their backs, becoming rare confidants in troubled times.
Rumors abound in the government and the public, the prince is sick and dying, King Yong acts arrogantly and seems to have rebellious intentions, King Shuo sticks to his duty, and various forces are intertwined and entangled. Countless clues point to the turmoil of fratricidal inheritance. The two follow the threads to get deeper into the chess game, but they don't know that beneath all the appearances of good and evil, there is a carefully laid out shocking mystery. The storm is coming in Beijing
Concept: The dispute between legal power and imperial power, the prince's overt and covert struggle for power