Mecha modification/Technological invention/StarCraft/Pilot becoming a god
After the Great Annihilation Catastrophe, the earth became a wasteland.
The real murderer is: interstellar empire + out-of-control AI + alien predators.
Mecha = the right to speak out about doomsday.
The protagonist group is a group of wanderers, relying on mechas, skills, inventions, and unity to fight from the earth to the stars and rewrite the destiny of civilization.
