Lu Xin, a young man with no three, accidentally obtained a black door and could travel to the post-war cyberpunk world. He had no high ideals, just wanted to pick up garbage quietly. Scrapped copper, scrap iron, scrap gold, scrap robots, scrap industrial mother machines... Who knew that as he picked it up, he turned into a technology tycoon. … Well, this is a story of an ordinary person who got the plug-in and got rich through two years of transportation.