Primordial Era: Reborn as Kunpeng, starting by swallowing the Styx River

By chance, Kunpeng transmigrated to the primordial world, just as the Dragon-Han Tribulation began. At this time, there were still many eons before Hongjun became a saint. Thinking of his future impoverished and unfortunate life as a demon master, Kunpeng felt he couldn't just sit and wait to die. Since his origins were top-tier but he had no treasures to accompany him, he decided to set his sights on the Netherworld Blood Sea. He decisively went to the Blood Sea, and before the Styx River's consciousness awakened, he forcibly devoured it, usurping its place. From then on, the primordial world lost one Styx Ancestor and gained a Northern Underworld Overlord. To accumulate strength, he was not in a hurry to become famous. On the surface, he entered the Heavenly Court and created demon script, seemingly working tirelessly for the demon race. In reality, he used this to set up a backdoor in the demon script to harvest the souls of countless demons. Secretly, he created Asuras, gathered evil energy, and transformed 480 million Blood God Children into countless swimming fish, lurking in every river and lake of the primordial world, gathering the fortune of heaven and earth. When the Investiture of the Gods calamity began, the schemes of the saints ultimately came to naught. The Kunpeng transformed, its feet planted on the Northern Sea, its back against the Blood Sea, and its hands holding the Earthly Cycle Reincarnation: "This humble Daoist Kunpeng shall be the Lord of the Earthly Dao, the Teacher of All Spirits!"