In the near future, the giant company "Cangqiong Technology" has built a suspended fortress over the city, turning the sky into the domain of the privileged. On the ground, the forgotten old city has piled up into a steel cemetery, and acid rain has corroded the rusted remains all year round. Lin Hao is a young scavenger who searches for discarded parts in the ruins every day in exchange for meager survival supplies. His biggest dream is to save enough money to buy a pass to the mid-level area and escape from the rotten life on the ground.
Once, in order to treat his seriously ill sister, Lin Hao ventured into the depths of the restricted area, but accidentally triggered the remains of a black mecha that had been abandoned for decades. The moment his hand touched the cold joystick, the mecha's pupils suddenly lit up with a dark red light, and a cold mechanical sound pierced directly into his mind. The identity authentication was passed. Welcome back, Judge Zero Seven. At the same time, a dazzling red alarm also lit up on the monitoring screen of Cangqiong Technology. The signal of the first-generation prototype, which had been missing for thirty years, reappeared. The tranquility of the sky and the ground was completely torn apart at this moment.
