For millennia, TWO REALMS have existed together in perpetual harmony.
The LIGHT WORLD, domain of the LIGHTNERS.
The DARK WORLD, domain of the DARKNERS.
But, one day, THE ANGEL... The hand that gave these worlds form... It deigned to SHATTER this harmony.
As far as we know, the LIGHT WORLD was left entirely unscathed.
But, the DARK WORLD...
...
Although balance between light and dark was maintained, the DARKNERS were left entirely embittered.
A burning hatred for the light now illuminates the dark.