Xu Fengqiu time-travels to become a villainous Immortal Emperor in a Xianxia novel, running into the son of destiny, Ye Feng, who crashes his grand wedding to snatch the bride. Unwilling to be reduced to mere cannon fodder, he instantly activates the Supreme Villain System and embarks on a path of counterattack. Defeating formidable foes and claiming supreme treasures, he confronts Ye Feng, then adopts multiple identities to infiltrate the Hundred Immortals Alliance, stirring up various factions. Wielding innate supreme treasures and unraveling techniques like death retrospection, he ultimately sweeps away his enemies, subdues the demon clan, and rides a nine-dragon carriage in carefree freedom between heaven and earth.