Tang Chuanchuan, a lover of modern fantasy novels, woke up outside Chang'an City with Kaiyuan Tongbao in his mouth and a wooden plaque with his name engraved on it in his arms. In this Tang Dynasty, there were demons, ghost markets, and documents that could change life and death, but there was no system to pave the way for him. The name of the child in the tea shed was secretly changed, and the corpse without a tongue in the village, the old account of the household, and the ultimatum from the temple surfaced one after another. Tang Chuanqiu does not know martial arts and has no identity. He can only rely on the old news about strange monsters he has read, the physical evidence in front of him and the help of a few people on the edge of the world to uncover the monster case hidden behind the name bit by bit in Chang'an City.
