Lin Xiu, a second-generation rich man, was sent to a suburban scrapyard by his family because of his cynicism. He was accidentally bound to a future technology synthesis system that can synthesize scrap metal, old electronic components and other scraps into hoverboards, quantum chips and even interstellar battleships. He started by selling gadgets to make quick money, gradually unlocking advanced technology and building a technology empire. At this time, the alien civilization "Covenant" invades the earth, and the system is actually a "seed of hope" sent by future humans. While using synthetic technology to fight against the Star Alliance, Lin Xiu integrated the forces of the earth, and finally built an interstellar battleship to lead mankind to fight back, becoming the "Guardian of the Earth." In the process, he slapped his family elders in the face, crushed his competitors, and went from tit-for-tat to fighting side by side with Su Wanqing, a genius scientist who hides his identity. The excitement ran through the three cores of "from waste to strength", "technology crushing" and "feelings for family and country".
