Xu Nian frantically absorbed the gray energy, with his soul cultivation continuously enhancing.
Soon, his soul cultivation directly broke through to the Late Stage Earth Immortal Realm.
Xu Nian instantly felt invigorated, as if his entire soul had undergone immense sublimation.
"I didn't expect this gray energy to be so magical, it actually aids in the growth of the soul," Xu Nian said happily.
The breakthrough of the soul removed its boundaries.
Next, he could cultivate both his body and soul simultaneously, so that when his immortal body reached completion, his soul could also be tempered mostly.
"Although this gray energy helps in enhancing the soul, I suggest you best not absorb more," Lin Ruolan suddenly said with a smile.
"Why?" Xu Nian asked in surprise.