Fuxi awakens in the primordial world with memories of his past life, relying on his younger sister, Nuwa, and she on him.
At the Dao Ancestor's third lecture, he is the first to uncover the secret of severing the corpses, and he and Nuwa both attain the Quasi-Saint realm. To help his sister sever her ego, he spends ten thousand years exhausting every means to divine the secrets of heaven. He creates the “Primordial Calendar” to set the turning of the seasons, then gives away all his immeasurable merit. With it, Nuwa achieves perfection, creates humanity at Buzhou Mountain, and becomes a Saint.
During the War between the Liches, he protects the surviving human bloodline by temporarily taking charge of the Heavenly Court. In the age of the Three Sovereigns, he reincarnates his true spirit to experience the human way. When Haotian enters reincarnation, he temporarily assumes the position of Heavenly Emperor and observes the movements of the stars. When Houtu transforms into the Dao, he takes control of the Underworld for one epoch, using the resurrection of the Ancestral Witches as leverage. The Heavenly Sovereign, Heavenly Emperor, and Earthly Sovereign: all three paths reach perfection.
During the calamity of Investiture of the Gods, as the Heavenly Dao weakens, he calmly survives the tribulation amid the battle of the Four Saints and proves the Dao of Primordial Unity.
Yet karmic entanglements in the primordial world grow ever heavier, and the Heavenly Dao falls out of balance. When the Chaos Demons who fled during the calamity of the world's creation return, Fuxi joins forces with Nuwa and Houtu to slay them and settle their karmic debts. He severs his final ties to the primordial world and ventures into the depths of chaos, carrying the nascent form of reincarnation and the true spirits of the Ancestral Witches.
The new world is called “Three Sovereigns Heaven.”
From then on, three mighty beings of Primordial Unity govern this realm together through the paths of Heaven, humanity, and earth, drifting through the boundless chaos in search of answers. Fuxi's Dao, once devoted to divining the workings of heaven and earth, now becomes a path to creating a truly perfect world together with those he loves and the friends he trusts.