In the primordial world, the protagonist, Xuan Chen, is a transmigrator from later generations. His soul merges with a portion of the original essence of the Three Primordial Gods and the Primordial Qi, becoming a Primordial God-Demon. Step by step, he comprehends the Dao, collects spiritual treasures, uses the Three Lamps of Heaven, Earth, and Man to sever his Three Corpses, and uses the Three Powers to merge his Three Corpses to achieve sainthood.