An Angel's Kiss

Who are we really?
We all think we know who we are; whether it be a normal run-of-the-mill teenager or not. Scarlett O'Hara thought so, too. She knew or thought she knew that she was a completely normal teenager.
She lives, she eats, she breathes, and is in every other way completely normal. But she's not. Of course, she's doesn't know any of this.
Then one day, Scarlett is kissed by an Angel.