Copywriter Lin Mo, who is in the late stage of liver cancer and has only three days left to live, is accidentally sucked into the End Game and obtains a red pen that can modify rules. At the cost of overdrawing his lifespan, he changes "no running" to "must sprint", changes "god" to "husky", and all the way defies and modifies the physical engine and system underlying layer. From the legislator to the rule itself, he paves the way for latecomers with his life, and finally turns himself into an immortal will, leaving behind the maxim "don't modify too much".