A girl named violet lived in the orphanage all her life. She has no memories of her parents but, what happens when she discovers that she is not human and learns how to use her powers and finds her father and lives with a new and creepy family.

Try and imagine that your a 14 year old girl who was just murdered by her brother, in a psycho issue.

Aoi Honou Kasei attends True Cross Academy with Rin Okumura, she is the smart, witty, humorous, popular girl that hides her sensitivity and other feelings she thinks are weak. She secretly crushes on Rin. She is unaware until she gets to know him that he is the son of Satan, but what he doesn’t know is that Aoi is the daughter of a Fallen Angel. She spends every day hiding her identity including her 10 foot pair of stark, midnight black wings, and secretly flying at night. What will happen when they discover their identities? Will they're forbidden love survive? Or fizzle out in a blue flame?

I'm semi basing this off of Li-Senpai's story called 'Lucy the Demon Slayer {Fairy Tail x Blue Exorcist} [Crossover]'