The fallen angels are all that are left to save the world.

These are the ending days when evil walks the earth but Anah has amnesia and can't remember she's a fallen angel. She agrees to serve a child as guardian angel, but when her memory returns she is faced with the truth... she is dark. Who will she serve in the final battle?... the Battle of the Fallen. The concept is based on the psychological and sociological idea of, 'The Looking Glass Mirror,' by Charles Cooley. The fact is that the angel, who was a fallen angel, is made to believe she is good through the eyes of an innocent child.—Lucky Bailey