Lu Feng, a retired special forces soldier, ventures into the darknet organ black market alone to save his terminally ill sister.
Using his severed fingers as an oath, he worked his way from the bottom to the core circle, only to find that behind the black market stood the shadow of the entire city—hospitals, logistics, energy, finance, and officialdom. The five major circles weaved into a man-eating web.
What's even more fatal is that the mysterious woman who always saves him at critical moments of life is actually an undercover police agent who has been hiding for eight years; and her father, the director of criminal investigation who has been laying plans for many years, is the one who pushes him into the abyss.
When Lu Feng finally got hold of the evidence that was enough to overturn the black market, his sister was kidnapped and used as a bargaining chip. He stood on the edge of the cliff, his left hand was the soldier's bottom line of justice, and his right hand was his only blood relative.
In the darkness, there are no heroes, only madmen who refuse to kneel.
And the madman decided to break the sky.