2157, The world after the "Great Collapse".
The digital civilization of the old era collapsed overnight. The network was paralyzed, AI was out of control, and nuclear facilities were leaked. Human civilization regressed to before the industrial revolution. Survivors call this day "Day Zero."
Today, a hundred years later, there is a legend circulating in the wasteland: "Fragments" remain in the ruins of the old era - among the destroyed data, buildings, and objects, there are still "memories" that have not been completely erased. Legend has it that whoever can collect enough fragments can "reconstruct" everything in the old world.
Lin Xu, 17 years old, is a scavenger in the restricted area.
He could see things that others couldn't see - "light spots" of different colors floating above each ruin. They are the "data afterimages" left behind by the items, and they are the embodiment of the fragments of civilization from the old era.
During an expedition into a restricted area, he was besieged by "corruptors". When he was about to die, a fragment that had been dusty for hundreds of years activated the secret in his body - in his body lived the remnant soul of an AI before the great collapse.
"You are not an ordinary person," said the AI named "Zero". "You are the last human being to be written into the 'civilization backup' before Day Zero."
From then on, Lin Xu embarked on a journey to collect the fragments.
