Lu Yan is the only 'Unchanging One' who can retain everything through the world's version updates. In a cultivation world, he turns the tables on a Soul Refining Shopkeeper and seizes a demonic soul banner. After escaping back to the modern city, he uses it to cultivate and becomes the world's only cultivator. When the apocalypse arrives, he even refines zombies' souls into nourishment for his soul banner, dramatically increasing his power. Upon returning to the cultivation world, he finds himself surrounded by formidable enemies, with a fearsome reputation preceding him. Through countless world version changes, Lu Yan's path to immortality will carve out a world uniquely his own.