The Chess Piece Has No Soul

From the Great Yongxi Territory, three urgent letters arrived in Beijing on the same day. The assassination of the Zhenxi Supervisory Army, the fire in the border army's grain depot, and the sudden death of the post's secret envoy - three cases, the same piece of mulberry paper, the same person behind the scenes. Gu Zhiwei, the head of the Criminal Department, was ordered to investigate the case, from the capital to the west of the town, from the account books to the corpses. Every clue pointed to an impossible answer. In the court hall, Shen Yanshan used legal principles as his chess and every step as his camp; in the royal court of Mobei, Helian Shuo used his cavalry as his son, watching with eager eyes. The two faced each other across the border, but they were led by the same person in the same game of chess. That person's name is Su Wan. He doesn't use soldiers or hold power, he just gives a gentle push to the weakest part of people's hearts. Then see the world in chaos.