As the only "scavenger" on the garbage planet, the protagonist's job is to deal with dangerous waste discarded by alien civilizations, but he accidentally discovers that these wastes contain fragments of ancient technology that can subvert the order of the universe. He used his extraordinary talent for mechanical disassembly and reassembly to transform countless seemingly useless garbage into terrifying war weapons. After being mistaken by a vengeful interstellar exile (villain) for being the successor of an ancient civilization, the protagonist is forced into a civilizational war that engulfs the entire universe. He has no system and no plug-ins. He relies solely on the ultimate utilization of physical rules and the engineering miracle of "turning waste into treasure" to fight his way from the garbage dump into the sea of stars. He finally reveals the truth about the "Great Screening" of the universe and becomes the "King of Rags" that makes even advanced civilizations tremble.
