Ten years ago, ten desperate people signed a "National Drug Trial" contract.
The gangster from the old city who couldn't settle the debt, the student who was expelled from school, the sidekick who had been idle for ten years, the tower crane with a broken leg, the girl waiting to die, the rider who worked hard to pay off his debt...
With one shot, the stupidest person in the city became "Mr. Shen" who had no tricks left, and the others became the father of AI, the movie king, the human CAD, and the capital hunter.
Only ten years later did they understand: the contract was not about their lives, but their smarter brains. And everyone who sent them in back then had ulterior motives...
Each of them is marked with a recycling date. What will be harvested are their transformed brains and children.
Eight top brains and eight countdowns formed a revenge alliance that disliked each other.
Intelligence is a borrowed life. They want to pay it back, but how to pay it back is up to them.
