Primordial Ascension?
In the blink of an eye, half a year passed and Nial finished the last of the 10,000 Refinements of Imperfectia.
His body released all the accumulated impurities from within. He underwent drastic changes now that he finished the Refinements of Imperfectia.
Nial's physique was as close to perfection as possible. This provided a solid foundation for him to advance to the Deux-rank and create a Mana Sea large enough to rival the biggest Mana Seas seen in the known Universe.
He might have spent a greater amount of time than he initially wanted to spend at the Prometheus rank but that was finally over. His Mana Core was already crumbling. The liquefaction process had already been initiated and the Emblems of his abilities had been removed from Nial's Mana Core as well.