Five years passed.
A roar of thunder, like the surging of a heavenly river, came from within Ning Fa's body.
At the same time, his entire body was covered in profound black Thunder Power, emanating an aura of utmost yin, utmost cold, and utmost softness.
At the location of Ning Fa's kidneys, a space had already been opened within. A black lake appeared there, and the water in the lake was all pure Supreme Water Divine Thunder.
Thus, Ning Fa's fourth Sea of Lightning Divine Treasury of Innate Divine Thunder was finally complete. Only the Supreme Earth Divine Thunder had yet to advance.
However, advancing the Supreme Earth Divine Thunder into the Innate Realm was far from easy.
This was because the Five Phases True Origin flowing from the Pottery Teapot was not evenly distributed. There was more of some Five Elements attributes and less of others. The greatest amount was Water Phase True Origin, followed by the Metal and Wood attributes, while Fire and Earth Phase True Origin were the scarcest.
In fact, the Spirit Abysses within the Five Spirits Sea were also scarcest in the Fire and Earth attributes. Presumably, this was the reason.
Ning Fa's Supreme Earth Divine Thunder had always possessed the weakest foundation, so the opening of its Sea of Lightning Divine Treasury was much slower.
Later on, Ning Fa absorbed all the Earth Phase True Origin in the pool. He could only wait for the Pottery Teapot above to flow out more Earth Phase True Origin.
Ning Fa simply paused his cultivation of the Supreme Earth Divine Thunder and instead focused on the body cultivation portion of the Ancient Source Thunder Scripture, as well as the Divine Firmament Manifestation and the Moon God Art.
He intended to use this time to cultivate all three