Jiang Yan becomes a night shift guard at the British Museum, thinking it would just be a simple security job, only to find himself facing a human-shaped Hongshan jade dragon and a murderous Han sword brother. I am just a security guard! What is a cultural relic battlefield, and what is a national fortune arena? Drawn into a desperate situation, Jiang Yan has no choice but to pick up his old trade, constantly making forgeries to replace lost authentic cultural relics, so that the relics belonging to the Dragon Country can represent their own country in battle. Jade dragons, Han swords, Shang dynasty divine birds, and the Imperial Jade Seal—as he replicates more and more forgeries, the mastermind behind the national fortune arena gradually appears before him.