This story revolves around Ah Jiu and Xie Lin's road to revenge and justice, with the two core cases of "opening the coffin in the imperial mausoleum" and "forcing the palace in the golden palace" to connect the whole process. In order to clear up the grievances of his father Aqian for "collaborating with the enemy and treason", and Xie Lin in order to find out the truth about the poisoning of his mother Su, the two borrowed fake identities from the deserted village medical clinic. After returning to Beijing in disguise, they sneaked into the ruined temple, the old study room of Xie's Mansion, the warehouse of the Supervisor of Ceremonies, and other places. They gradually grasped the irrefutable evidence that the emperor ordered Wang De to poison the two mistresses and colluded with Beidi.
In the process, the two experienced life and death crises such as the attack of cold poison, the siege of the mausoleum guards, and the pursuit by the Yulin Army. They even faced the Hunjun's counterattack on the Golden Palace, and Xie Lin was struck by a sword in order to protect Ajiu. In the end, they joined forces with Wang Yushi, Zhenguo generals and other loyal and loyal people, and successfully forced the palace to depose Hun Jun and support Jin Wang on the throne. The new emperor is his enemy Zhaoxue, Ajiu's father pursues the title of duke, Xie Lin is granted the title of regent, and Ajiu is granted the title of Zhongyihou. After finally paying homage to their relatives in the imperial mausoleum, the two agreed to go to the south of the Yangtze River hand in hand to welcome a stable future.
