Lucifers light and heavens grief

What if Rin and Yukio were never taken in by shiro? What if they were taken to the place where their demonic powers grew stronger through pain and despair. Don't worry, they didn't go to hell, for hell is somewhere you go when you fucked up and ended up dying. The twins...let's say they're in between. They're not alive but not really dead either.
Rin and Yukio, once you get through the levels of hatred and pain you can find their lovable, child side. but that doesn't mean they still aren't twisted in the lightest part of their soul.
Now it's a game.
They win, global damnation.
They lose, global corruption.
Such a simple game for reckless children.
DISCONTINUED UNTIL FURTHER NOTICE