Quietly feeling the immense power surging within himself for a moment, a sharp gleam flashed across Du Fei's eyes!

"What a formidable Heavenly Phoenix Immortal Sutra!"

Within the Heavenly Phoenix Immortal Sutra, there were both techniques and martial arts, but in essence, it was a kind of Body-forging Martial Arts. In some ways, it was similar to the Ancient Bronze Body Refining Technique and the Mystic Ice Heavenly Body that Du Fei had practiced before. ...