The Legend of 4

Remember that giant robot I'm designing? Well his name is "4", an ancient robot created by the god Kalindari to defend the world, Denhali, and its humanoid inhabitants, the Denhal.
4 was given phenomenal cosmic power and immortality, but lacked the knowledge of right and wrong, which led to the "Rebellion" when another god fooled 4 into joining her against Kalindari, culminating in the final battle on the Denhali planet surface.
With Kalindaris defeat within sight and the world falling apart, a brave Denhal woman stood between 4 and the weakened god. Influenced by the sheer courage and purity of her soul in the face of certain death, 4 turned against the evil god and chained himself to the four corners of the world to prevent its destruction, holding it together. Although the world was saved, Kalindari did not release 4 from his chains. 4 was too powerful and too easily fooled to be set free, so he was condemned to imprisonment until he was needed again.
Kalindari blessed the brave Denhal woman with power and wisdom, and she went on to build the capital city Kalindri and unify the planet in a golden age as Queen of the Denhal. History soon became legend, and legend became myth, until 4 was all but forgotten. It is rumored that the royal family still have the powers passed down from their brave ancestor, and that when in grave danger solely have the power to awaken "The God Machine" to defend their city.