Origin of Organism

There is the force between heaven and earth, The greatest treasure in the world is the rough stone. No rough stone was seen, I don't know the force. . . . In the 22nd century, a super volcanic eruption reduced the world's population to less than one-third of its previous level, but it also brought a treasure from the ground that changed the destiny of mankind - rough stones. The original stone is neither gold nor stone. It is the origin of life and the pinnacle of technology. What, do you rely on robbing rough stones? It doesn't matter, I have a mecha. The opponent also has a mecha? It doesn't matter, my mecha can do martial arts. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.