Modern man Lin Fan travels through time into the role of the heir of the Prince of Bingjian's household in the Great Jing dynasty. His stepmother, Qin Hui, frames him, leading his father to strip him of his heir status and expel him from the princely residence. At the brink of death, he awakens a mysterious ancient bronze mirror that allows him to enter another world and obtain spiritual herbs and fruits, causing his strength to grow by leaps and bounds. With the help of mysterious members of the Embroidered Uniform Guard, Lin Fan starts as a low-ranking guard in Ping'an County. He suppresses bandits, executes corrupt officials, solves old cases, and purges internal spies, gradually building his own power and winning the people's support.