El Demon was once upon a time a small Mexican boy that was learning fighting on the streets of Mexico City the hard way before he was abducted on the verge of death after a rather serious beating by several larger kids.

After awakening and thinking that he had been saved he realized that his life had just taken and turn for the worse and being beaten near death became commonplace for him for several decades until he was able to become strong enough to beat pretty much anything his keeper sent at him. At this point his keeper beat him up to near death and dropped him off in the mortal world to die. He was however found and brought to a hospital where he regained his health.

At the moment he lives in Aberdeen, working hard and loyally for the summer court. He has learned lots and lots of martial arts throughout his life and continuously learns more.