In the last years of the Jing Dynasty, the officialdom was corrupt, and it was difficult for a poor family to produce a noble son. Lin Yanqing, a poor scholar in the south of the Yangtze River, his father died young, his mother was seriously ill, and his younger sister was frail, so he still studied hard despite being a poor man. He won consecutive victories in the county examination, government examination, and college examination, and met the calm Zhou Wenyuan and the bold military commander's son Zhao Chong, and the three became close friends. After passing the provincial examination, he went to Beijing to take the examination. He passed the second-level imperial examination and became an official in Dali Temple. At the beginning of his official career, Lin Yanqing repeatedly solved strange cases: the Gongyuan fraud case, the Caoyin disappearance case, the border spy case... Each case affected the undercurrent of the court. He got to know and cherish the clever medical girl Su Wanrou, and he dealt with his mentor, classmates, and political opponents. As his power increased, he adhered to his original intention, rectified the administration of officials, implemented new policies, and eventually became a famous minister, creating a prosperous era for a poor family.