Mech Apocalypse: My Mech is Ridiculously OP

Betrayed and killed by his demon girlfriend ten years into the mechanical apocalypse, Zhang Wei gets a second chance—reborn seven days before the world ends. Armed with foreknowledge and determination, he'll build the ultimate arsenal: heavy trucks evolved into devastating mechs, close-combat juggernauts, long-range artillery, floating cannons, and impenetrable shields. This time, he's not settling for survival. He's claiming supremacy. In a world where metal reigns and humanity fights for existence, Zhang Wei will forge the strongest mech empire and crush anyone who stands in his way.