Doomsday's Ultimate Mechanic

When a doomsday virus transforms Earth into a nightmarish sandbox, humanity's only hope lies in the "Key of Doomsday"—a mysterious power that lets awakened warriors traverse apocalyptic worlds to fight back. Su Hao gets a second chance when he's reborn on the eve of the apocalypse, armed with precious memories from his previous life. This time, he won't be a victim. With future knowledge and unmatched mechanical genius, he'll forge his own path to survival and domination in a world where only the strongest mechanics can reshape destiny itself.