Underneath the neon city, there is an unknown martial arts heritage hidden. A line of martial arts legends that had disappeared for ten years suddenly appeared. One after another, veteran martial arts masters died mysteriously, leaving only a dark iron token engraved with dark patterns. Jiang Che, a mysterious figure who wanders in the gray area of the city, appears to be an ordinary teahouse owner that no one knows about, but is actually the man behind the scenes who controls half of the underground martial arts world.
He originally wanted to stay out of the matter, but because of an unexpected token, he was involved in this serial hunting of the inheritors of the martial arts. The manner of death of the deceased all corresponds to the lost ancient martial arts killing moves, but the clues time and time again point to the fire ten years ago that caused drastic changes in the world of martial arts. The seemingly loyal subordinates around him betrayed him one after another, and those close to him hid secrets. Every step of the investigation was like stepping into a carefully laid trap.
Jiang Che used thunderous means to sort out clues, and used dusty ancient martial arts techniques to dismantle the puzzle in the reinforced concrete room of modern cities. While suppressing all the forces that were ready to move, he also traced the true purpose of the mastermind behind the scenes. He discovered that this hunt was not a simple fight for martial arts, but someone's attempt to tamper with the rules of martial arts inheritance and reduce all warriors to pawns. In the layer upon layer of reversal of suspense and fog, Jiang Che must uncover the martial arts conspiracy hidden behind the prosperity of the city while protecting the people around him, and become the one who truly controls the overall situation.