When the Global Game launches its first trial—a low-level zombie apocalypse where humanity battles for survival—Su Changxing awakes in a desolate, lightless metropolis. A shambling undead creature pounds relentlessly at his barricaded door while he struggles with a terminal illness consuming his body. With thirty days to outlast the horde and amass one thousand Points, his chances of survival seem impossibly slim. But within the depths of his phone lies an unexpected lifeline: a mysterious Points discount store that shatters the rules of this deadly game.