The soul was an existence of extreme yin, and it could be considered similar in nature with the power of the dark origin energy. With the nourishment of the dark origin energy, Xiang Shaoyun's filthless soul further solidified. His soul power grew rapidly, reaching a level comparable to the soul of a third-stage Soul Foundation Realm cultivator.

The Nether Soul Domain also grew rapidly, its durability reaching a brand new level. With the current strength of his Nether Soul Domain, he could trap and kill a bunch of Sovereigns easily. Every single one of the ghostrunes had also undergone a thorough transformation. They now looked much fiercer and extraordinary, and their cultivation levels had also grown.

That was especially true for Gui Qi, who reached the eighth-stage...