The world is torn apart by a plague of unknown origin. The infected people will turn into mindless crystal monsters "Crystal Skeletons", wandering in abandoned cities. Lin Jingxuan, a former data analyst, relies on his extraordinary calmness and knowledge to survive alone in the city library. His world consists only of data, rules and absolute rationality. Until one day, an intermittent radio signal came, telling the hope of a "purification zone" in a distant place. Forced by the imminent depletion of survival supplies, Lin Jingxuan had to step out of the fortress he had held for many years. He will face the ferocious crystal skeleton alone, and the human heart that is more difficult to predict than the monster. This journey with an uncertain future will not only test his survival skills, but will also question his long-frozen humanity.
