Guqin master "Xian Sheng" Lin Jiuxiao died in the peak battle of Tianyin Continent, but his consciousness accidentally traveled through time and space and possessed "Lin Xian", a low-level boxer in the Great Yan Dynasty who was abandoned by his family and had a "life-betting contract" thousands of years later. In this steel city where technology and martial arts are intertwined and where the powerful dominate the sky, all that is left of the once powerful man is his frail body and broken memories. Facing the arena of life and death, family strife, and the pursuit of a mysterious organization, he must rely on his remaining martial arts experience and a piece of guqin fragments he accidentally obtained to play the prelude to a counterattack in a desperate situation.
From an outlaw in an underground boxing ring to a dazzling star in a top university; from a chess piece being used to a chess player. Lin Xian uses music as his blade and martial arts as his bones, dealing with the powerful plutocrats, powerful Zhenwu divisions, and secret sects. When he gradually uncovered the mystery of his own time travel and touched the core of the "Long Song Ruins" that had been dusted for thousands of years, he discovered that his rebirth was actually a key link in the rotation of the fate of the two worlds. This is a swan song that tears the sky apart and shakes the universe. It is a long martial arts song that belongs uniquely in the urban steel jungle!
