In this competitive world, the four factions of immortals, demons, Buddhas, and monsters vie against one another. In the boundless starry sky, why does the Immortal Realm stand above three thousand worlds? Faced with grandmasters of the immortal sects, titans of the demonic path, and ancient monsters that have lived for millennia, how will the protagonist, Lu Chen, find a way to survive among the strong, forge a path of his own, and ultimately rise to become the strongest under heaven?