In the Apocalypse: I'm Just a Junk Collector

The apocalypse arrives, and the entire world faces extreme heat, floods, extreme cold, storms, earthquakes, and other disasters. At the same time, zombies, mutated beasts, and invading monsters from beyond ravage the land. Tang Chen returns to one month before the outbreak of the apocalypse. And he successfully binds himself to the Scrapper System! Abandoned buildings, slain zombies, damaged weapons... He can extract valuable items from them and reassemble them through the System! Before long, Tang Chen, dressed in rags but incredibly wealthy, gradually becomes the apocalypse's ultimate boss! A certain military organization: “Get me in touch with that strange scrapper. Order three thousand quantum rifles. Don't worry about the price. We have to win this war!” A certain tycoon: “I'll give you half my fortune. Give me a spirit crystal! I don't want to die!” A rival organization: “Where did this kid get so many resources? Does he think everything's free?!” Tang Chen sighed. “I'm just a scrapper, that's all.”