An indescribable Dao Yun began to circulate around him.
The first stage of Core Formation, an impeccable physical body!
Previously, when Zuo Chengzong underwent Core Formation, he almost skipped this stage because he was well prepared in advance, choosing to face death and revive, and stimulated the Purple Thunder Heavenly Heart with the vitality of the Nine Heavens Divine Thunder.
There was no need to worry about other issues.
But Chen Yuan couldn't do that, as he did not possess a precious physique like the Purple Thunder Heavenly Heart. He had to refine his physical body slowly and gradually, only then could he resolve future worries.
This stage was the simplest, and the vast majority of Martial Artists had no problem with it, but at the same time, it was actually the most important one because once the Heavenly Core entered the body, it could not be separated.
