Li Qiankun faces betrayal from a mecha girl and relatives who strip him of his inheritance. The F-rank ability user awakens a God-tier Modification System. He upgrades Xie Jin, an E-rank scrap mecha girl, into an SSS-rank killing machine. Li Qiankun builds an army of mecha girls to reclaim his legacy. He confronts the Machine God Cult, which plots world domination.
