In the future city "New Guguang City", human souls can be extracted into a liquid called "spirit", which becomes food for the upper class's enjoyment and eternal life.
Lin Mo, the black market tuner in Diyuan District, is the top craftsman in this dark industry chain. He walks on the edge of law and conscience, just to protect his only relative - his sister who suffers from a rare "spiritual failure syndrome".
When my sister's life comes to an end, the only hope points to the creator and monopoly of ectoplasmic technology - Immortality Technology. A contract from the top ruler dragged Lin Mo into a deadly game with his soul as the bargaining chip.
Behind the lies are countless "source bodies" that have been drained of emotions and memories; beneath the gentle smile is absolute madness that regards human life as fuel. In order to save his sister, Lin Mo must seek skin from a tiger and steal the legendary "original spiritual essence".
But when he discovers that he and his sister are just pawns in a huge conspiracy, his goal is no longer to steal, but to ignite all the imprisoned souls and let this cold city hear the heartbeat of all sentient beings again.
In this city that lives by devouring souls, can one person's resistance be the salvation of everyone?