C451 Soul Performing Technique

"It's normal for you all to know about this, but how exactly are you going to turn the Yuan Dan into Martial Spirits?" Elder Yue asked again. Sure enough, no one replied. After all, their cultivations were still too low.

"It is very difficult for a Yuan Dan to turn into a Martial Spirit. It must be combined with a Martial Dao Heart. This requires a martial artist to comprehend the Martial Will