When the Angel falls for the Devil (Mephisto X Reader)

"Help me find my faith .." It was the very first words that the priest Shiro heard from the thin but beautiful little girl curled up on herself, holding the pendant of her dead mother with the cross reflecting the light of the moon as the only source of light in the dark dormitory room of the orphanage. The girl then grew up with the priest, who gave her love and faith for god with his two children, Rin and Yukio. But a new incident happened in the monastery and the priest died after being possessed by Satan himself. Clutching the cross of her pendant, she swore that she will exterminate Satan and all those who will get in her way. What she does not know yet is that she will fall in love with one of the strongest of the lineage of all demons confused, Samael king of time or Mephisto Pheles, director of her new exorcist school, True Cross Academy. She will be watched by the Vatican just as much as Rin because she also holds a great mysterious power which was hidden from everyone except Shiro himself.

______________________________

Blue Exorcist belongs to Kazue Kato.
I only created the story of the reader and the love story with Mephisto.