Hekouxuan is a good place with simple folk customs, beautiful mountains and rivers. However, the county magistrate Li Zhijue, who has been in office for less than a year, is muddle-headed in handling cases. He always protects the local richest man Ouyang Gui. He is despised and unpopular by the people. He is regarded as a "dog official" rarely seen in ten years, and is even nicknamed "Ninth Prince" behind his back. In fact, Li Zhijue is not too bad by nature, and is quite smart. After passing the imperial examination, he followed his father to join the ranks of constables. By chance, he saved the local rich businessman Ouyang Gui, so he was favored by Ouyang Gui, who used money and means to open up connections for him, so that Li Zhijue became the local magistrate as his pawn in the officialdom. After becoming a county magistrate, Li Zhijue had ambitions and hoped to make achievements so that the people could live and work in peace and contentment. Unfortunately, his uncle You Zhanwang killed someone by mistake, and the handle was in the hands of Ouyang Gui. Li Zhijue had no choice but to accept Ouyang Gui's control. Whether in handling cases or implementing policies, he always followed Ouyang Gui's interests. Over time, he became careless and unprincipled in handling cases and dealing with people. Li Zhijue had a fiancée, Zhong Huan, who had always been obedient to Li Zhijue. However, after Li Zhijue became a county magistrate, her attitude towards Li Zhijue also changed drastically. Her gentle and considerate character changed into caring about everything and interfering in everything, from daily life to Li Zhijue's official affairs. She would infuse her opinions into everything. If Li Zhijue did not follow her will be punished, which made Li Zhijue very annoyed. As a result, their relationship fell into an invisible gap and they gradually felt pressure. One day, the young and beautiful Baolin came and threatened to marry Li Zhijue, which made Li Zhijue laugh and cry. It turned out that Baolin was adopted by the head of Emei Sect, the lonely nun, and taught martial arts. When Baolin was ten years old, she secretly went down the mountain and was in danger. Fortunately, she was rescued by the young Li Zhijue, who promised to marry her in the future. Li Zhijue thought that Baolin was just joking and agreed to it. But time flies, and Baolin has grown into a beautiful young lady. Baolin is determined to fulfill her promise and marry Li Zhijue. The nun gave Baolin six months. If she still hasn't married Li Zhijue after six months, she will have to return to Emei and resign as the head. Baolin went down the mountain to find Li Zhijue, and was shocked to find that Li Zhijue was no longer the heroic and righteous dream lover of the day. Baolin was disappointed, but she believed that Li Zhijue was just temporarily lost, and she would try her best to restore his former courage. Once, Pu Guang was amazed by Baolin and felt that Li Zhijue was not worthy of Baolin. Pu Guang made up his mind to collect evidence of Li Zhijue's corruption, make Li Zhijue's crimes public, bring him to justice, and win the beauty home. Pu Guang, who was originally from Hekou County, went down the mountain after completing his studies at Wudang. He and Li Zhijue went to Wudang to learn martial arts, but Li Zhijue was expelled from the sect within half a year. Pu Guang came back this time to join the public service, rectify the chaos, and eliminate the unhealthy trends. Ouyang Gui's son Ouyang Xing coveted Ruan Xisha, a descendant of an official family, but Xisha had already fallen in love with the scholar Cheng Shichuan, so she disdained Ouyang Xing's pursuit. Ouyang Xing's pursuit failed, and he was so angry that he framed Cheng Shichuan. Li Zhijue knew that this was a frame-up, but under the pressure of Ouyang Gui, he had no choice but to sentence Cheng Shichuan to execution in the autumn. Afterwards, Li Zhijue was deeply reproached by his conscience and felt that he could no longer be a person living in the cracks. In order to redeem his mistakes, he put on his night clothes late at night to rescue Cheng Shichuan. In order to conceal his identity, Li Zhijue had to take an embroidered mask with plum blossoms. Afterwards, Li Zhijue was afraid of being discovered, so he created a "Strange Hero Yizhimei" who specialized in robbing the rich and helping the poor and doing justice to confuse people. The many righteous deeds of "Strange Hero Yizhimei" were widely praised by the people, and even the women around him, Zhonghuan and Baolin, became supporters of "Yizhimei". Li Zhijue also began to feel a little proud; but when he returned to his position as a county magistrate, he had to face complaints from high-ranking officials and merchants about "Strange Hero Yizhimei", which made him love and hate this identity of "Strange Hero Yizhimei". However, through the righteous behavior of "Yizhimei", Li Zhijue also awakened the justice and conscience hidden in his heart, and regained respect and popularity. Gradually, Li Zhijue also fell in love with this hidden identity of "Yizhimei". Eunuch Fang, the head of the East Factory in Beijing, came to Hekou County in person. Although this trip was in the name of official business, his real mission was to find out the whereabouts of the illegitimate child for the current emperor's younger brother. However, during the investigation, the news of the emperor's death suddenly came from the capital. In order to protect his power in the capital, Eunuch Fang rushed back to the capital overnight. When the prince ascended the throne and became the emperor, he sent eunuch Fang to visit the old place again to find the prince. The person that eunuch Fang was looking for turned out to be Jiang Xiaoyu, who had been a gangster in Hekou County. However, the token of recognition unexpectedly fell on You Zhanwang. It happened that You Zhanwang himself was also an orphan and was adopted by the Li family since he was a child. Xiaoyu also had a love for You Zhanwang, so she took advantage of the situation and thought that as long as You Zhanwang became the prince, he would take her to the palace to meet his father. Just when everyone thought the incident was settled, eunuch Fang's attitude suddenly changed. It turned out that eunuch Fang received a secret order from the queen mother to kill You Zhanwang to avoid future troubles. Xiaoyu's lover's behavior turned into a disaster for innocent people. Luo Fu even colluded with eunuch Fang to kill Li Zhijue and Pu Guang and others again, and the battle between good and evil was about to break out.