Modern time traveler Ning Yuan was born in Aolai Country of the Primordial World, depending on each other for survival since childhood with his younger sister Ning Jing, struggling to survive relying on the entry system. He hunted fish demons to unlock the Naga bloodline and gained the ability of the water folk, but was ostracized by the human Tianshui Sect for cultivating demon race cultivation techniques, being forced to separate from his sister. Ning Yuan entered the sea to rise, fighting all the way, subduing subordinates, and obtaining Xiantian spiritual treasures and cultivation heritage by chance, his strength rapidly increasing. He met the eve of the Journey to the West kalpa, maneuvering between multiple forces including the various demon kings of Flower Fruit Mountain, the Nine-Headed Bug of Bibo Pond, the Underworld, and the Heavenly Court.