In the future city "Sky City" where technology and class are solidified, Lin Yuan, a lower-class waste picker, struggles to survive in the garbage mountain every day in order to treat his sister's illness. In an accident, he obtained a mysterious black cube, which gave him the terrifying ability to analyze, decompose, and reconstruct all mechanical creations. From a scrapped cleaning robot, to a military-grade exoskeleton armor, to the core of a starship. In Lin Yuan's hands, scrap metal can also be turned into a magical weapon. From then on, an unknown person who should have been buried at the bottom embarked on a legendary road that changed his destiny against the will of heaven, shaking the order of the entire interstellar era with a pair of hands that can reconstruct all things.
