Blue Exorcist: Memories of the Hunted

A new girl comes to school and her name is Annahime Lyn. She has no recollection of her past, but soon finds it. Mephisto is trying to solve whoever is killing all of the exorcists and finds out that she is here. With the help of Mephisto, Rin, and his friends Annahime regains her memories. Annahime remembers that Mephisto raised her but was taken away for some dark reason. As if things couldn't get more interesting the man who she had been staying with is the cause of the murders and something even worse....a pale rapture.