Erika, a normal girl, 11 years old, gets kidnapped by the vampires. She gets tortured and experimented on. After Yu came to her rescue she joins the Demon Army. She then discovers a dark secret about herself. It includes her two brothers that she didn't know existed. She learns to control her dark secret while seeking out revenge on the vampires. !DISCLAIMER! I do not own Owari No seraph and its characters or Blue Exorcists Characters!! All credit goes to the Manga and Anime writers!! The only characters I own are Erika and Alex! CREDIT TO ALL THE ARTISTS ARTWORK I USE!!!!!!!!! This story is mature because there are some language and gore.