C5027 The Journey Was Difficult(part I)

"After all, there aren't many formulas like that. A Advanced Crystal Core is hard to come by when compared to a Worldly Treasures. Therefore, there are fewer and fewer ways to use a Crystal Core."

As he spoke, Yuwen Hu drew a Demonic Beast's Crystal Core on the ground. He also drew a map of the human body's meridians on the side. It looked like a cult