Overtime Transaction, I Exchanged Half a Bottle of Water for an Aircraft Carrier

Zhang Yang returned home and inherited his father's junk shop, and suddenly opened the time-travel trading system, which allowed him to trade with parallel worlds. Before 2018, there was no difference between this parallel world and Blue Star, where life was publicized. But in the year 2018, because of a biologist's crazy actions, the world directly turned into an apocalypse. Because of the constant teasing of the doomsday, the world has become extremely short of daily necessities. The previous aircraft carriers, fifth-generation fighter jets, and photolithography machines that represented the pinnacle of industry have become a pile of scrap metal, and their value is not even as good as a bottle of mineral water. Zhang Yang exchanged mineral water, instant noodles, and ham for countless supplies. Aircraft carriers, fifth-generation fighters, photolithography machines, five-axis machine tools or machining centers, etc. The high-end technologies and equipment that had been blocked before have become a bad street due to Zhang Yang's constant trading. ........ This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.