Many years ago, the earth was very much unlike how it is today. The world was dark and filled with infinite shades of grey. There was no such thing as colour.
Euphrosyne: Greek goddess of joy
Overlooking the earth and protecting it, was countless Gods and Goddesses, each with their own individual roles and obligations.
Lyssa: Greek Goddess of Anger
Kratos: God of Strength
Achlys: Goddess od Sadness
Eros: God of Love
Phthonus: Greek God of Jealousy
Athena: Goddess of Wisdom
To this day, it is unknown exactly what the reasoning for this conflict was. Some say it has to do with dominance, some say it has to do with allies but whatever the case is, this conflict inevitably started a war.
One day, seven of the main Gods/Goddesses of human emotion were involved in a major argument with one another.
After this initial conflict, each of the seven isolated themselves from the others.
During this time, each grew more and more unpleased and there did not seem to be a solution in sight.
Eventually they decided that they would all go to a neutral ground and fight out their issues by means of war and so they headed for earth.