I have yet to name the gods so I put what they are god of in quotes. Yes, I am aware of the plot holes and unrealistic things, they are there on purpose.
Before time, before space, there was only the three brothers. They never fought, though they were often bored. One day the eldest of the three brothers 'EARTH' decided to create the land of Ethanderial. He spent years shaping it and his brother 'LIGHT' created the sun so that the brothers may see. It would be a place where the brothers could enjoy themselves. For many years they played but slowly, once again, the boredom emerged.
'LIFE' thought the problem must be a lack of others to play with. He created three brothers: 'FIRE' master of fire, 'WATER' master of water, and 'DEATH' master of death.
The brothers had a lot of fun for a long time, but yet again the boredom emerged. 'LIFE' saw how effective his past strategy had worked and decided to try it again. This time it'd be different though, the people he created would be able to themselves create others and there would be immense fun. 'LIFE' created many types of animals and races.
Everyone else had fun, but 'LIFE' soon found that he couldn't. He was no longer needed to create and without creating he grew bitter and depressed. Soon realizing he was no longer needed, nor liked, he left Ethanderial to go to a new plane of existence. There he has remained for eons...