Ultima's rebellion had left guardianship of the world in disarray. The Scions of Light and Zodiark had fought long and hard against the Scions of Darkness and Ultima, and prevailed, though at a great cost.
The Scions of Light had sacrificed themselves to defeat the uprising, and only Zodiark was left alive and obedient.
The Gods imprisoned the Scions of Darkness and Ultima in the mists as an eternal punishment, bound to magical glyphs scattered across the world. And so, Zodiark remained the only demigod left on this planet.
His power was frightening, even at such a young stage in his life, and so the Gods kept him with the body and power of a child.
They dared not make another group of Espers, to prevent another rebellion, and so they gave to Zodiark absolute authority over the world.
His tasks were many, even now. With the other espers, he had overseen the growth and regulation of the world itself, and the task fell upon only him now, as well as the new task of watching over the mists, and ensuring it's prisoners never escaped.
But even as powerful as he was, Zodiark simply could not oversee the entirety of one world and another by himself, and so he cried out to the Gods.
"My masters! Your servant's strain is great - I cannot perform my duties alone!"
This call for help did not go unnoticed. The Gods were wary of making new espers, but under the watch of Zodiark, a single new servant was safe to be created, they decided.
Thus, a new Esper was created. As he awoke, this new guardian saw his serpent master, and was spoken to softly.
"Awaken, Netzach. Your brother welcomes you to the world."