I severly revised origin story of graal for the movie to make it less ocarina of time-ish. This is the basic plot line. ;D

In the early days, The Great Unix created what we now know as graal. Along with it, he made the Gods. Azreal, Pachuka, Galen, and xor. These gods were designed to protect the realm of the Golden Gate, which in it rested the golden sword. The key to ultimate power. Each god had a grail that symbolized their entity, and only by the power of all four of their entities, the four holy grails, could one gain access to the Golden Gate. This person is named the Golden hero.
It is said that the God Azreal once used the power of the Golden Sword to rule this land. He became corrupted and a demon. This Azreal reigned terror down on his people, so Segrub, a mage loyal to the gods, harnessed the power of the golden portal; deep in the depths of the Nafet river. Doing this he sealed away the legendary Gold Sword from Azrael and stoped his wrath. Segrub called on the gods of Graal to seal the golden gate so that only the Golden hero who was chosen by the gods and aided by the four grails could open the portal. Without the power of the golden sword, the evil Azrael vanished. But so did the legendary gold sword…
Until now. A strange creature from another world, known as Higbey: Demon Lord, has somehow harnessed the power of the golden sword and now lives within the Golden Gate. With this, his power is undeniable. No one can stand up to him. But legends never die. The golden hero is still out there… out there to fuffill his destiny, and restore graal once more!