A young girl grew up in a church that taught and trained the followers of Christ how to perform exorcisms and how to battle demons. When she was 17 and just an exorcist in training ,albeit a prodigious one, she met a guy. He was quite a bad boy and despite knowing better, she began to have feelings. However, due to his influence, she began to stray from the faith. She kept the relationship with the boy a secret, but one day her sister interrupts one of their secret rendezvous and realizes that the boy is a demon. The sister then tells the rest of the church that a demon was after her sister. The girl tries to warn her lover ,but the exorcists quickly find the two and attack him. Being the prodigy that she is, she manages to distract them so that her lover can escape. For her own safety, the girl is guarded in case her lover comes back, but he still finds her and visits her at night. She gives herself to him, multiple times and eventually becomes pregnant from the encounters. However, one night, just before he is about to leave, the sister comes into the room, sees him, and tries to attack. He then jumps out the window, only to sprout bat wings, a tail, and horns, revealing himself to be the Devil himself. He thanks the girl for the fun time and laughs at all the lies she believed before disappearing.

The girl is heartbroken, but realizes how foolish she was. It isn’t long before the Church finds out about her pregnancy and a council is called to decide what should be done. It is decided after looking through the scriptures not to kill the child, but to let it grow and see which path it chooses. The sister is unsure of the decision, but accepts it, but swears that if the child shows any signs of becoming a demon, she will put it down. The repercussions for the girl’s actions make themselves obvious rather quickly, she is no longer able to use any holy abilities she had as an exorcist.

This brings us to the modern-day part of the story where the baby has grown into a teenage boy and his choices determine whether he accepts his role as a Prince of Evil or rebels against it be part angel, favored in the eyes of God. As the story goes, he is constantly tempted and his dad even shows up to coax him to his side. As he has not accepted Christ he’s easy prey.

This one was heavily inspired by the anime Blue Exorcist.