Global Wasteland: Don't Throw It Away! Trash Synthesizes into Divine Artifacts

The entire population descends upon the Ash Wasteland, where each person begins with nothing more than a leaky iron shack. The water is contaminated, mutated beasts prowl the wastes, and in seven days, a black rain capable of corroding steel will blanket the entire region. While everyone else scrambles to seize water and food, Zhou Heng dives headfirst into the junkyard. To everyone else, broken filter cartridges, dead batteries, and rusted sheet metal are worthless trash—but in his eyes, every piece carries hidden attributes and a synthesis path. A damaged filter cartridge plus a discarded hand pump plus a cracked water tank synthesizes into a fine-grade water purifier! An acid crystal plus a scrapped motor plus a tracked chassis synthesizes into a mobile wasteland fortress! While others are still risking their lives for half a bottle of water, Zhou Heng has already begun rebuilding civilization out of garbage. There is only one question: why do the old-civilization vehicles rolling out of the underground ruins bear furnace serial numbers exactly identical to his own?