Cheng Xing, a modern college student, once traveled through time and became Cheng Erlang, the son of a policeman in Chengchuan County in the Ming Dynasty. Because the police officer was of "low status", his path to the imperial examination was completely blocked. He had no choice but to put away his thoughts about his past life, accept the iron ruler and waist badge passed down from his father, and step into the public service.
From then on, he carried the label of "low status" and groped his way through unknown cases, protecting his family and seeking a way out of the world's entanglements. How did the modern youth of the past break through and grow up in the Ming Dynasty's police career and find their own way?
It can also be called "Memoirs of Cheng Erlang's Later Years"