Zhang Ruochen could become a pinnacle lower-class saint from an elementary lower-class saint because of the power of a saint dragon pearl.
The dragon pearl indeed had tremendous power, but it wasn't pure.
For example, Zhang Ruochen was like a short and thin child before, but after he took the dragon pearl, he became a fatty who had a giant body. He indeed had much more power than before, but he looked too plump compared to the others.
And now, this fatty with a giant body needed to exercise to get rid of his fat and turn it into muscles so that he could be stronger.
At this moment, Zhang Ruochen was using the fire in the lava to refine holy Qi in his body and to comprehend the saintly way rules so that the holy Qi and saintly way rues from the dragon pearl could completely merge with his own.
The saintly way rules left in Zhang Ruochen's body became thinner and thinner. However, the rest of the saintly way rules became clearer and more magical.