back story? hmm not sure what you mean.
But his mother was human,(don't even ask me how that works) he doesn't have any siblings. His demon half is known as Baltazzar, supposed to be incredibly dangerous.
He used to be a part of an evil brotherhood, that worked for The Source. (The ultimate evil).
ummm one of these i'll have to do you a proper bio, but still running very short on time
