After the Cyan Bird King left, Chu Ming returned to his room alone and took out a top-grade spirit stone from his storage ring to begin his cultivation.
For experts in the Realm of Transcendence and Life and Death Realm kings, top-grade spirit stones were the main resource consumed during cultivation. Given that at such a realm, it might only take two hours to deplete the spiritual power in an upper-grade spirit stone, Life and Death Realm kings were even more terrifying, able to drain the power from an upper-grade spirit stone in an instant.
Surging spiritual power flowed along the Eight Extraordinary Meridians, eventually merging into Chu Ming's Sea of Spiritual Power. He didn't have many top-grade spirit stones, and the spiritual power in them was undoubtedly much purer compared to upper-grade spirit stones.
