I Learned How to Solve Crimes in Prison

In the 20th year of Wanli, the Korean War was in full swing, and the struggle over the country was beginning to take shape. Xiaoqi Lingyun, a hereditary guard, became paranoid and withdrawn because of his father's unexplained "death in the line of duty" three years ago, and became an "abnormal" in the eyes of his colleagues in Beizhen Fusi. During an investigation, he was punished to kneel on the snowy night for contradicting his superior. When he was on the verge of death, he was accepted as a disciple by Shen Zheng (known as "Cold-faced Yama"), the governor of Nanzhen Fusi, who was known for his ruthlessness. Ling Yun thought he had found a shortcut to find out the truth about his father, but found that his master Shen Zheng not only prohibited him from pursuing old cases, but his training methods were so strict that they were almost cruel. The two masters and apprentices worked together to solve a series of bizarre cases, from the ghost market in the capital to the water transportation in the south of the Yangtze River. Each case seemed to be inextricably linked to the general situation in the court and the border war. Ling Yun grew up rapidly under Shen Zheng's training, but gradually discovered that the master seemed to be closely related to his father's death, and might even be a participant in covering up the truth... This is a master-disciple bond intertwined with suspicion and protection, and it is also a picture depicting the turbulent court world during the Wanli years. Ling Yun will eventually uncover a huge conspiracy that can shake the country's foundation, and in the process of making a choice, he will understand what the real "Jin Yiwei" is.