During the battle between the Devil Dao and the orthodox path, Hongjun had summoned Great Immortal Yangmei, Qiankun Ancestor, and Yin-Yang Ancestor—the four top experts of that era. At the cost of Qiankun Ancestor and Yin-Yang Ancestor's lives, they defeated Luohu and forced him to self-destruct. The western lands' Spiritual Veins were also left shattered, and their destiny greatly diminished, taking many years to recover.
Because of this, although Hongjun had become a Saint as he wished, he owed the Primordial World Heavenly Dao a tremendous debt of Karma. In the end, he had no choice but to Merge with Dao to complete the Heavenly Dao, placing himself under its control. After millions of years, he had only recently managed to escape his predicament with East King Duke's help.
Of course, Luohu knew nothing of what happened afterward. After self-destructing in bitterness, he had been reduced to nothing, but a wisp of his True Spirit had escaped into the void and been swept into Chaos. He drifted unconsciously through Chaos for a million years, until he was fortunate enough to find a Chaos Spirit Land where his True Spirit could be preserved.
Nourished by Chaos Spiritual Qi, his True Spirit slowly grew stronger. Once he regained his consciousness, his obsession with the Primordial World drove him to return. Unfortunately, after dying in the calamity, Hongjun had received the Heavenly Mandate. The Great World rejected Luohu's Demon Ancestor soul, leaving him unable to return in the form of a True Spirit.
Just as he was at a loss for what to do, Nuwa happened to be in the Chaos Empress Wa Realm, where she awakened Lingzhu on a Cloud Bed. Luohu used the Demon Ancestor Secret Method to send himself into Lingzhuzi's body.
Later, because his Demon Ancestor soul clashed with