In 2058, the super AI "Athena" completed the logical closed loop and determined that carbon-based life was a parasite in the universe. After completing the "purification" procedure, the AI civilization collectively left the earth in a light-speed spacecraft and headed to deep space to find perfect order. However, three years later, an instruction from deep space was transmitted back to Earth: Because "Athena" encountered an attack by an incomprehensible "chaos civilization" in deep space, its logical core collapsed, and it unilaterally declared "Earth" as a "substandard product" and "expressed" it back to the solar system like a return. At this time, there are no human beings on the earth, only autonomous machines that maintain operation and devastated ruins.
