Sealing Demon Valley.
Just as Huang Qi had said, there truly were a large number of Golden Dragon Blood Crystals here.
Zhou Yu wasted no time and immediately began searching and refining simultaneously.
Initially, when refining just over a dozen crystals, the enhancement to his physical strength wasn't noticeable.
But as Zhou Yu refined into the hundreds, his body underwent a tremendous transformation.
On the outside, he only appeared slightly more robust than before entering the valley, but if one were to observe his internal meridians and blood vessels at this moment,
they would discover that the situation inside his body had completely changed.
Especially, his meridians had become unprecedentedly tough.
Now, he probably dared to withstand Xia Houyun's strike with his body alone without damaging his meridians in the slightest.
Furthermore, Zhou Yu's blood vessels, already potent due to the peak of the Blood Melt Realm's Qi and Blood Power,
