However, for Jiang Chengxuan, the importance of this technique lies in the fact that it could help him collect the Heavenly Origin Qi that might arrive at any time.
This was a necessary item to refine a Heaven-grade Nascent Soul.
It would only appear every sixty years when heaven and earth interacted.
At that time, there would definitely be many people who wanted to fight for this Qi. An intense battle was unavoidable.
If Jiang Chengxuan could successfully cultivate this Qi Harvesting Technique, he would definitely have an edge.
It seemed that this technique should be his greatest and most important gain on this trip.
Jiang Chengxuan adjusted his state and mind and began to comprehend the Qi Harvesting Technique with all seriousness.
On the other side, Cao Xiuchun and the others had ugly expressions.
Especially when they saw the empty rooms and spiritual fields, the anger and killing intent in their hearts were overflowing.