Monster (A Supernatural Fanfiction) 
"Maybe you are a monster, but so am I and so is Dean. Maybe every human or every living being is a monster. But who ever said that monsters can't save the world from a bunch of Biblical douchebags? We may be monsters but the three of us? The three of us will save the world, Sam, and we'll do it knowing we're heroes no matter how Heaven, Hell, or Humanity looks at us. Just because you may be a monster does not mean that you are forced to be evil as we are depicted. I don't believe that we have a destiny and even if we do, I don't believe we have to follow it."
The Apocalypse is coming and the Universe's greatest weapon is a young, broken, Athiest living in a crap ass apartment in Knoxville, Tennessee studying to be a therapist.
When Sam and Dean Winchester stumble upon Cassandra Moore for a run-of-the-mill demon case, they find out that she's much more than just a neighbor to the possessed. After realizing just what this college student is capable of, they're forced to whisk her away from her life of textbooks and simplicity and throw her head first into the deep end of the supernatural world.
Scared and not knowing a thing about the upcoming Apocalypse, Cassandra is forced to push aside her Atheistic beliefs and discover how to use her powers fast before Lucifer roasts the whole planet.
With her archangel father on her ass, three sides fighting for her loyalty, a complicated relationship with one Winchester brother, a moody angel as her coach, and a whole novel of mental illnesses, Cassandra struggles to adjust in her new life as the long lost daughter of Michael. Can she get her powers up and working before Lucifer wrecks havoc on all of Humanity; or will Cassandra fail the human race as the world's savior?
(Set in Season 5)
(I do not own Supernatural or anything else you recognize. Cassandra Moore, this plot, and anything else you do not recognize belongs to me.)
Amazing cover made by @Uzuriupendo