In the modern city, Chen Xuan, a low-level young man who sells antiques on a street stall, accidentally awakens the "Ancient Antiquities Activation System", which can awaken the ancient wisdom in ancient objects and turn them into magic weapons or mythical beasts. He used the fragments of the activated Chaos Bell to teach the urban management, used the broken porcelain fragments of the Innate Five Elements Flag to solve the museum theft case, and used the little clay figures of Houtu to cure the chaos caused by the ghosts, and gradually revealed the secret that he was a legacy of the ancient times. In the process, he cooperated with museum curator Chu Zhao to fight against the urban dignitaries and reborn villains who coveted the power of the ancient times, and finally gathered the treasures of the ancient times and became the "prehistoric street stall king" who protects the city.
