C2367 The Secret of the Heavenly Demon Technique

Ye Feng manifested the Undying Rune and hovered around his body. Behind him, a half-human and half-Demonic Beast gradually appeared in front of everyone's eyes.

"Condense the Yin and Yang, there is no difference between it and the Demonic Beast. As long as you understand the meaning of these runes, you will be able to condense the Demonic Beast, and even transform into a Demonic Beast