Birth of a God
Exactly on the day 1000 years after his birth, Jason's Celestia aura began to change.
At first, there were subtle changes, but one could quickly notice that it was forming a domain.
Using the Origin energy from the surrounding, the Celestia aura became denser, stronger, and its effects were intensified manifold.
However, the aura itself didn't change much as it was formed in a domain.
But that was not necessary, to begin with.
Jason's Soul fusions would actively change his domain, which meant that a neutral domain with powerful effects was everything he truly required.
Thus, the Celestia aura was best to be naturally formed into a domain, even if there were specific traits that focused on purification and holiness.
Yet, that was not of much importance since the Agran bloodline's influence on the Celestia aura changed the final product of his domain slightly,