Only after resting for a full two days did Lin Xuan gradually recover.
This Yin-Yang Art truly was a heaven-defying divine ability, utterly different from other cultivation methods.
Other high-level secret arts were incomparably difficult to practice; without several years, or even decades, one could forget about achieving anything.
Yet this Yin-Yang Art required only seven days. Of course, the prerequisite was being able to endure that inhuman pain.
Fortunately, after mastering it, converting yin and yang spiritual power would no longer bring any discomfort.
Lin Xuan sat cross-legged and used the technique of inner sight, observing the condition inside his body.
Within his dantian, a large amount of azure spiritual power had gathered, circulating slowly. Lin Xuan drew in a breath and began operating the Yin-Yang Art.
A wondrous thing happened. The azure faded, and the spiritual power gradually turned into a strange color as black as ink.
This was yin spiritual power!
Half an hour later, Lin Xuan stood up from the ground, but his expression was not very satisfied. Although he had learned the Yin-Yang Art, the conversion between the two different kinds of spiritual power was still a little too slow. Normally, there would be no problem, but in battle, it would clearly give the opponent an opening to exploit. He had to reach the point where he could release and withdraw it at will.
Still, this was nothing. Practice made perfect. As long as he practiced more, mastering it proficiently should only be a matter of time.
During this period, another happy event occurred: Yue'er successfully reached the Foundation Establishment Realm.
When he had just received the news, Lin Xuan had found it somewhat hard to believe. After all, when he had established his foundation back then, even with top-grade Marrow Cleansing Pills as assistance,