Lin Changheng, a modern agronomy master's graduate, accidentally transmigrates into the world of immortal cultivation, where he becomes an alchemy apprentice in the Xu family, having languished for thirty years. At the brink of despair, he awakens the Primordial Cauldron, a small bronze vessel capable of absorbing the essence and blood of demonic beasts to condense treasure seeds that grant talents, improve spiritual roots, and enhance comprehension. From possessing a mixed spiritual root, he rises to a low-grade spiritual root, advances to become a qualified alchemist, and earns the status of a registered guest retainer. Just as the great wilderness reclamation begins, with family rivalries and demonic beasts running rampant, he relies on caution and quick thinking to navigate every step, embarking on the path to immortality.