In the dark night, evil immortals descended from the sky, and the underground palace of the ghost market revealed the tip of the iceberg. Is the strange black tea that is popular in Chang'an a health-preserving medicine or a harmful thing? The cases of bride disappearance in Chang'an City have occurred one after another, and it seems to be inextricably linked to black tea... The case is complicated and confusing, and the human heart is mysterious and difficult to judge! Lu Lingfeng, the general of the Jinwu Guard, was ordered to investigate the case. He encountered Su Wuming, the last disciple of Di Renjie, the strongest opponent in his life. The two strong men joined hands to solve the strange case of Chang'an! Nine strange cases of different styles, "Chang'an Black Tea", "Stone Bridge Picture", "All Beings Hall", "Huangmei Killing", "Gantang Post Strange Talk", "Tu Shen", "Human Face Flower", "Cantian Tower", one by one, reveal the strange stories and records of the Tang Dynasty under the night! Witness the strange imagination that has been buried for thousands of years besides Tang poetry. Thousands of years ago, the Tang Dynasty, where all nations came to pay tribute, was the well-deserved center of the world. Superior material life and diverse cultural integration gave birth to the extreme imagination of the people of the Tang Dynasty. In addition to the magnificent Tang Dynasty depicted by the legendary poets such as Li Bai, Du Fu, and Bai Juyi, the peddlers in the market also used their unrestrained imagination to sketch out the ghosts of gods, demons, and monsters in the night of the Tang Dynasty: immortals, demons, goblins, strange stories, magic, exotic legends, rare birds and animals, palace anecdotes...