Li Ming traveled to the special Ming Dynasty time and space where monsters were rampant, and became the sixth-grade flag officer of Jinyiwei. The original person was silenced for investigating the "Demon Lock Case". He intervened in the assassination of Prince Zhu Changluo with his modern criminal investigation thinking and the unexpectedly awakened "Sky Eye" ability. The "Bronze Demon Lock" left at the scene of the case and the secret passages of the East Palace hint at the work of supernatural forces. The discovery of the "Human Skin Demon Array" in the palace of Concubine Zheng above the court pointed the finger at Cao Shaoqin, the governor of the West Factory, who used the demon case to suppress the forces of the East Palace. Li Ming was forced to cooperate with Lu Yi, the commander of the Jinyi Guards, to identify the suspect through modern traces, but was accidentally involved in the political whirlpool of Emperor Wanli's use of the demon case to suppress the Donglin Party. As the investigation deepened, he discovered that the "Qi Zhenmen" of the demon clan was actually a tool for the imperial power to control the human and demon races, and his identity as a time traveler and his "eye of the sky" ability were facing the risk of being exposed.
