Job Transfer for All: the Machine Is Soaring and I'm Rubbing the Two-Way Foil with My Hands

On Global Job Change Day, everyone is awakening to the magic, swordsmanship, and summoning systems. I became the lowest-level mechanical maintenance worker and was assigned to repair scrap metal in the garbage dump. Everyone is laughing at me: Who is still playing with technology these days? Until I made a steam engine, internal combustion engine, electromagnetic gun... Until I used a sniper rifle to shoot through the head of an S-class genius... Until I took out a palm-sized piece of silver foil in front of the whole world—— In that battle, a five-kilometer radius was compressed into a picture. The coalition army was completely wiped out, and the legendary mage knelt down and trembled. The system warning sounded: "Dimension strike weapon detected, server is about to restart..." The whole world went crazy: "What on earth is he holding in his hand?!" I took a puff of cigarette and said calmly: "This thing is called a two-way foil. Don't panic, this is just the preliminary version." They said I was scrap metal, but I showed them—— Above the scrap iron is a sea of stars. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.