In the Mortal World, it is well known that each cultivation technique of a different attribute has a corresponding color, such as Life Green, Flame Red, Ice Crystal White, and so on.
For Mu Can, who inherited the Dragon Ball from the Dragon Group, it could almost be said that he could perfectly wield all attributes possessed by giant dragons. If he could cultivate the Mystic Dragon Nine Revolutions to the end, he might even transform into a giant dragon tens of thousands of feet long.
However, after Mu Can unlocked the Reincarnation Pearl up to the Fourth Layer, he found that what was most important to him now was a kind of energy, Life Energy.
To unlock the Third Layer required Life Energy, the growth of the new world in the Fourth Layer also needed Life Energy, even Wang Cai needed Life Energy.
