I, the Mechanic, the Torrent of Steel Is Normal, Right?

Ye Cheng traveled to a world where monsters invaded and the whole people awakened. Awakening profession: Mechanic! Mechanic, control the mecha and crush monsters with absolute power! Handsome! What a pity... That's someone else. Because mechanics require a lot of resources to build up, you can't afford it if you don't have mines at home! Fortunately, the billion-fold amplification system was awakened! Hunt monsters and gain experience points! Ordinary level power armor? Increase! Mythical level! Increase! Increase! Everything can be increased! When Ye Cheng led the torrent of steel to attack the monster army, the monsters were frightened: so many mechas? You are the monster!