Apocalyptic Food Vendors

Chen Yu, a bitter college student, has obtained a "food supply system" and can travel back and forth between the end of the world and reality. Chen Yu is prosperous! A piece of bread can be exchanged for a pile of gold, silver and jewelry. A can can be exchanged for an electromagnetic cannon. A bag of rice can be exchanged for an aircraft carrier. One hundred pounds of flour can be exchanged for a space ark. Even a pack of snacks can make countless beauties recommend themselves to pillow seats. In the last days, he is the supreme king. In this world, he represents a legend. "Mr. Chen, the market value of Sugon Technology you founded has exceeded 10 trillion US dollars, and you will continue to top the world's richest list. What do you think of this?" "To be honest, I never thought about becoming the richest man from the beginning, so I vigorously promote charity every year. Although it costs hundreds of billions of dollars every year, there are still so many, which is actually very helpless..." Chen Yu said when asked by reporters. Ps: Post-apocalyptic farming literature + business black science and technology literature!