C347 A thick barrier to the aura sea would also be troublesome

It was precisely because of this that Ling'er was so worried in his heart.

There was naturally a precedent for success in expanding Qi Sea s, but those were the proud sons of the great powers.

Furthermore, when the Qi Sea was being expanded, there would be experts of the Martial Saint and above guarding by the side, protecting them.

"At most