Doomsday Super Technology Core

When the doomsday comes, at the last moment of the earth, the last-standing mechanic suddenly returns to ten years ago and obtains the highest technological achievements of the doomsday. Kill the alien beasts, build the main city, gather the population, and change the destiny of the human race! The man behind the scenes who leads the human race to counterattack and create the apocalypse! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.