I Collect Rags from All Realms and Become the Supreme Profiteer

Lin Qi, a programmer who died suddenly, was forced to bind to the "Wanjie Profiteer System" and sent a group of fraudulent text messages to the big guys in the cultivation world at the beginning. I thought I was certain to die, but I accidentally defrauded him of dozens of times the "bonus", causing the system to be on the verge of bankruptcy! In order to survive, he was forced to work in a garbage dump connecting all realms, making a living by fooling big bosses and reselling "junk". "This piece of scrap iron is the embryo of a supreme sword, so you need to pay more!" "Expired soda? This is the secret brew of Albizia Julibrissin. You have to pay extra!" But... Why does the "junk" he sells always lead to enlightenment and breakthroughs among the big guys?