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Transformed into a minor official in Weizhou in the later Tang Dynasty, Chen Xuan's golden finger is familiar with all the "hidden rules" of the Five Dynasties. He became famous in one battle by cooking rice to detect greed. But in the highlight of the night, three knives hung above his head - Jiedushi forced him to take the blame, the emperor forced him to be a traitor, and Shi Jingtang sent someone to silence him. From a chess piece in a chess piece to a handsome actor in Weibo, he never cut off an inch of Yan Yun. He used the three dark webs of economy, intelligence, and human relations to stitch the troubled times into an order that could survive without having to betray the country. This is a story in which research is a killer move and a comeback is popular science.