In the "Sky City", a futuristic city where technology is highly developed and classes are solidified, Lin Yuan, a young man living in the "core area" at the bottom, scavenges in dangerous junkyards every day in order to collect huge amounts of money for the treatment of genetic diseases for his dependent sister. In an accident, he discovered a mysterious "source core" from an unknown civilization. This source core not only has self-awareness, but can also analyze, reorganize, and upgrade all mechanical creations!
From a scrapped engineering glove, to a dilapidated scavenger exoskeleton, to an abandoned starship wreckage... In Lin Yuan's hands, all scraps can be turned into artifacts! With the ability to infinitely upgrade, Lin Yuan rose from the bottom, punched local gangsters, stepped on the children of aristocratic families, step by step from the ruins of the underground to the dome of the sky, and finally revealed the shocking secrets hidden behind this world and the "Source Core".
