King Zhuanlun was the title given to the Reincarnation Ghost Emperor, the strongest expert of the Netherworld Ghost World, when he was still ruling the Underworld in the Primordial Ancestor Realm many eras ago!
However, after this former King Zhuanlun and a multitude of Ghost Dao Experts parted ways with the Primordial World and occupied the Netherworld, their Dao cultivation progressed rapidly, achieving the rank of strongest expert in the Netherworld Ghost World.
But he is only a strongest expert, having not broken through creation to achieve the eternal realm of the Primordial Chaos Dao Fruit, hence not powerful enough to threaten the Dragon Phoenix clans.
Moreover, the rise of the Netherworld was relatively late; during the time when the Dragon and Phoenix clans were dominating the world, even the Underworld wasn't in sight!
