During the Zhenguan period, Chang'an was unparalleled in splendor, the Tang Dynasty was beginning to flourish, the court officials governed the Qingming Dynasty, and the monarch and his ministers were harmonious. Dali Temple was an iron-faced yamen in charge of punishment and legal support. Fireworks are flourishing in the streets, but there are also strange rumors. The ghost markets in Chongrenfang and Wubenfang are a mixed bag of fish and dragons, harboring filth and evil. Occasionally, there are rumors of strange things, either to create suspicions about the sinister people's hearts, or to hide people's ears through miraculous tricks. The protagonists, who met by strangers and became comrades in life and death, solved the mystery of one unsolved case and formed a deep bond during the investigation. In the prosperous times, there are always people with ulterior motives, who may use evil stories to confuse the public, or who may enrich themselves by committing roosters and dogs to steal. Behind the prosperity of Chang'an, there are always undercurrents.
