This is an era where "price" can be bought and sold. Health, time, memory, emotions... Everything can be exchanged as long as the agreement is signed.
In order to save his seriously ill mother, Chen Zai signed the seventh price agreement: three years of liver life in exchange for one week of special medicine for his mother. The arbiter reminded him coldly: "Your liver rating has been reduced to C. Next time, the price may be your eyesight." He thought this was just another desperate choice, until he saw the glimmer of light floating on the worker's body at the moment of his death - that was the residue of the price, and Chen Zai's wrist rune actually absorbed it. After suffering severe pain, he briefly regained the abilities of the deceased.
Since then, he has seen another side of the world: countless golden threads entwining people into a web, senses and pain being traded in the black market, and behind the so-called "fair price" is carefully designed exploitation and devouring.
From the "fuel" that passively bears the price, to the "ash" that glimpses the fragments of rules, Chen Zai groped for the complete formula in pain, learned to fuse, plunder, and even create value. He was forced to join the shadow organization "The Ashes" and work at the bottom of a society full of surveillance and debt, only to find that he and his mother had already been trapped in a huge network - at the end of the network was a huge family that controlled the flow of all costs.
