Previously, he believed that once the purity of one's vital energy reached a certain level, further improvement through dual cultivation with a woman of the same origin would no longer be possible.
But now he knew that it wasn't that improvement stopped altogether, but rather that it was minimal and hard to detect.
By absorbing the primordial yin energy of sixty-nine people in one go, his vital energy purity increased once again, reaching forty-five times that of an ordinary martial artist. This was indeed a pleasant surprise.
However, the Mortal Transformation Realm truly operates on a tier-by-tier basis.
The higher the level, the slower the progress. Especially after reaching the middle stage of the fourth level within the Mortal Transformation Realm, the improvement becomes even slower.
