Three thousand people enter the gray world, and only one person comes out. This is the iron law of the Criminal Council - only the one who survives is qualified to gain power. Lu Li was "pushed" in. An orphan in a criminal camp has no parents to shield him from the knife, and no noble people to pave the way for him. All he has is a rusty machete and a habit of always thinking one step ahead of his opponents. In the gray world, some people survive by forming teams, some survive by betraying their teammates, and some survive by cannibalism. Lu Li has only one way to live: whoever wants to kill me, I will let him die first. Don't take the initiative to harm others, but you will never be lenient. On the last day, only three people were left. The examiner said: "Kill one, and two will live; kill two, and one will live. You make your own choice." Lu Li didn't choose. In front of everyone, he "traded" with the world - using all his memories in exchange for a one-hit kill. After that stabbing, he forgot who he was. But he remembered the fear on the examiner's face. Later, he learned that there was a secret hidden in the forgotten memory - his parents were not criminals, but insiders who had been silenced. The key they left behind can open the door to the deepest part of the abyss. Behind the door, something is waking up. Everyone told Lu Li: Power comes at a price. But no one told him: the biggest price is that you find yourself a chess piece from the beginning. Then this game of chess will be overturned