If not for his special ability, it would be hard to imagine how long anyone could endure such an intense tempering process.
This must be why, although many people cultivated the Jade Kala Vajra Body, the number of those who succeeded could be counted on one hand.
And this was only the beginning.
To even reach the entry-level, one had to wait for the Dust to temper the physical body until it could fuse with it completely, achieving the Perfection of the first physical transformation. Only then was it considered a success.
Throughout the entire process, the longer one could endure, the better the tempering effect and the greater the intensity would be.
Consequently, the first physical transformation would also reach a more powerful state.
However, during this process, the pain would grow more unbearable with each passing moment.
But for Yang An, who had already eliminated the cost and felt no pain whatsoever...
...endurance didn't seem to be much of a challenge.
