Yukio Okumura x Reader

Alone. Y/N has been alone for so long, drifting from place to place to gather every piece of information she can on demons. To allow her to get revenge on the demons that possessed her parents when she 11 forcing her to kill them brutally. 6 years ago they stole her innocence; her childhood. By successfully exorcising demons in the villages she passes her name became known to the Vatican. Mephistopheles himself recruited Y/N, knowing that she was no mere human. In his eyes, she was just another toy to add to his chest.