Apocalypse: I Dominate with My S-Rank Mech

In the Age of Catastrophe, humanity fights the Iron-Devouring Beasts with mechs, and mechanical affinity decides everything. Cast aside by the Blood Wolf Squad for his F-rank affinity, Lin Feng is on the brink of death when he accidentally activates the Mechanical God System. Armed with an S-rank mech legion, he opens the Stormwind Repair Station and sweeps the wasteland with superconducting batteries, custom mechs, and other cutting-edge tech. He earns mountains of crystal energy and crushes his old enemies, the Lei brothers, while upgrading his system, forging Abyss-class mechs, and guarding civilization's last flame—rising from scorned nobody to the undisputed king of a mech empire at the end of the world.