Lu Zhiwei was born in the Lu family courtyard on West Street, Qinghe County. His parents died early, and only his sickly brother Lu Zhiyuan was left to support the family. Lu Zhiyuan studied hard for ten years. He originally wanted to change his family's livelihood by taking the county examination, but he had a high fever and vomited blood the night before taking the exam. Lu Zhiwei had copied books for his brother since he was a child and memorized the scriptures silently. He was also familiar with the rules of the county school. In order to protect his brother's name and the family's debts, he cut his hair and bound his chest, and brought an examination basket to the venue for his brother. She thought that as long as she survived three games, she would at least be able to give her brother a chance to survive. However, in the dormitory, she discovered that there were rumors about exam questions, interlayers in the exam baskets, secret marks on exam papers, and that poor candidates were being targeted. The examination hall in Qinghe County is not a place for simply seeking talents, but a place where the squire, county school, chief examiner and subordinate staff pass their swords to each other. Lu Zhiwei is not born to break the rules. She relies on carefully observing the rules, remembering people's words and holding back her fear, step by step from being accused of taking the exam to the center of the fraud case. After her identity was exposed, she had no way out and could only find a way to survive among the county magistrate, the chief examiner, and the poor students. Eventually, she started as a staff member of the county government, and worked her way into the depths of power in the court by reviewing cases, dealing with disasters, checking accounts, and identifying people.