50% of Heaven, 50% of Hell

I was just a normal girl, with a normal life. Until I saw a homeless man attacked by a cloud of living black smoke. After seeing the guys face, I swear he was possessed. He was hideous. He tried to attack me, but for some reason when I touched him he turned bright white and ran away.

Later on in the week, I started going crazy. I was seeing a man dressed in a old, tan trench coat, and he had large, coal black wings and shining eyes. He claimed to be an angel, named Castiel.

He brought me to Sam and Dean Winchester. They explained to me how I was the daughter of the holiest angel, and the most evil demon, and that I had the power to wipe out heaven or hell.