It was said that several million years ago, this had been a Pure Yang Immortal Vein where the pure yang qi of heaven and earth converged.
At the core of that Pure Yang Immortal Vein lay a Red Sun Stone Embryo. After being nurtured through several calamities, the stone embryo had ultimately given birth to an innate deity.
That innate deity was the later Setting Sun Heavenly God.
The Setting Sun Heavenly God had been born of heaven and earth, an innate deity naturally bearing the origin of the Red Sun. His talent and foundation were rare throughout the ages.
At the very moment Setting Sun Heavenly God was about to be born, his companion spiritual treasure, the Red Sun Halberd, had advanced to the rank of a top-grade innate treasure.
Treasures stirred men's hearts. Even to Daluo Golden Immortals, top-grade innate treasures were precious, let alone the Celestial Immortals of the Sky-Pillar Immortal Domain.
In the end, dozens of Celestial Immortals disregarded the karmic burden of heaven and earth and fought to seize it, severely wounding the newly born Red Sun Celestial God.
That incomparably precious innate treasure, the Red Sun Halberd, was also taken away by an ancient immortal from a calamity era.
Although Red Sun Celestial God was born afterward, without his crucial companion treasure, his own laws could never be perfected. The Red Sun Law transformed into the Setting Sun Law, and his strength greatly declined as well.
It was precisely because of this that Setting Sun Heavenly God ultimately failed to survive the calamity, passing away in the Setting Sun Sea Region and transforming into the Dao to become the Setting Sun Blessed Land.
The Pure Yang Immortal Vein that had nurtured Red Sun Celestial God might originally have transformed into the Red Sun Grotto-Heaven