Jeweler Zhang Zichun is very old. He bought Chen Sanliang, a red prostitute in Fuchun Hospital, as his concubine with his great wealth. Chen Sanliang vowed to die, and she felt that her life was poor, her beauty was unlucky and she was in pain. This matter was discovered by the shopkeeper Wei Ming. Wei Ming turned out to be the captain of the state official, and he knew all about the inside story of the state official. Zhang Zichun bribed Wei Ming, begged him to bribe the magistrate, and threatened Chen Sanliang to achieve his wish.

Magistrate Li Fengming accepted Zhang Zichun's 200 taels of silver and spoke for Zhang Zichun everywhere in the trial. Chen Sanliang denounced that year. Li Fengming became angry from embarrassment and beat Chen Sanliang without asking the reason. Chen Sanliang still refuses to give in. She told Li Fengming that she would rather die than leave Wudingzhou. The scheming Wei Ming thinks that there must be another reason why Chen Sanliang refused to leave Wudingzhou. Li Fengming immediately sought Chen Sanliang, who was forced to say that he had taught Chen Kui, a poor scholar in Fuchun Hospital, and hoped that he would become famous at an early date and avenge himself. However, Chen Kuiqing was ungrateful after his success, which led to a hard life for Chen Sanliang. Li Fengming didn't believe that Chen Sanliang had such literary talent, so he tried her on the spot. Chen San's two-point brushwork is like a dragon and phoenix dance.

Li Fengming studied Chen Sanliang's ink carefully, and found it very similar to his long-lost sister Li Suping's handwriting. Knowing that his sister had been familiar with Huangdi Neijing since childhood, he took out his hidden Huangdi Neijing to test it. Chen Sanliang was shocked when he saw something. Only then did he know that the unconscious officer who interrogated himself was his brother Tao who had been separated for 12 years. The brother and sister already know each other. Although they are brothers and sisters, Li Fengming, who is already in the ninth grade, how can she recognize her sister who has become a fireworks woman? Li Suping recalled that in order to bury his parents and raise his younger brother, he shamefully betrayed himself, hoping that Mr. Tao would grow up, avenge his parents, be an honest official and benefit the people. But he is such a faint official, and his heart is very sad. Just then, Chen was suddenly called here and the trial stopped immediately. The voice of Chen Sanliang's grievances kept coming, and Chen Kui personally accepted the case and met with Chen Sanliang.

With a genial smile, Li Fengming recognized his sister Chen Sanliang and repeatedly asked Chen Sanliang to make amends and beg for mercy. Chen Sanliang is ruthless. Chen Zhaotai handled the case impartially and was demoted and convicted.