The "Second Era" ended, and the earth became the largest technological cemetery in the galaxy. Cheng Qi, a scavenger, struggles to survive in a mountain of garbage. His only reliance is a "synthesis" system of unknown origin in his brain, which can turn rags into treasures. On the day of the apocalypse, he synthesized a bunch of nanny robot remains into an all-round assistant that could adapt to extreme environments. However, a "Survival Law System" covering the world was activated at the same time, digitizing the world and issuing a cruel survival mission: establish a primary shelter within 30 days, and the losers will be erased.
Cheng Qi's synthesis ability attracted the covetous attention of the "Vulture Gang", the bully of the wasteland. In the desperate situation of avoiding pursuit and collecting materials, Cheng Qi accidentally synthesized and activated an advanced artificial intelligence sleeping in the ancient core - "Zero". Zero has powerful information processing and tactical planning capabilities, but his memory module is severely damaged. He only remembers his code name and one top order: to protect and assist the "synthetic division" Cheng Qi.
From then on, one person and one AI formed a life-and-death partnership. Cheng Qi is responsible for "gold mining" and synthesis in the ocean of garbage, while Ling is responsible for analyzing threats, planning routes, and controlling the synthesized equipment to fight. They must synthesize weapons, defense facilities, and energy cores from endless scrap metal before the countdown reaches zero, and gradually build a temporary hideout into a strong fortress. Their enemy is not only the eyeing "Vulture Gang" and the ferocious mutants, but also the cold system itself that treats everything as a game. And deep in Zero's lost memory, there seems to be a shocking truth about the destruction of the "Second Era" and the coming of the "System" hidden.