I plan to translate the entire game, but I can't lie, it takes forever since I don't actually speak/write Japanese this is a sort of trial and error version done using Google translate and my best judgement on what comes out. Anyway, here's the prologue.
Chapter 迷宮の鍵 Chapter Key of the Labyrinth
Scene プロローグ “Prologue”
An alternate world existing like a mirror. Assiah, inhabited by human beings, Gehenna where demons reside.
It's a two dimensional divide that can not be removed The demons possessed all kinds of substances and threatened humans.
However, we also accumulate special training in humans and purify demons Exorcists existed.
With the highest rank of Exorcist "Paladin" in mind, "Knight" to protect the front line by direct attack with a sword. "Dragoon" who attacks from a long distance with firearms, bows and the like.
悪魔を召喚し、 操って戦う 『
"Tamer" who summon demons and manipulate them. "Aria" fighting by singing fatal verses written in the Bible and scriptures. Healing Masho inflicted by demons, dispelling magic, the "doctor" who controls medical care.
The former Paladin - Fujimoto Shiro's foster child, Rin Okumura, Brother of Yukio While carrying fate as a child born of the devil, Vowed to defeat Satan.
I'm pretty sure there's more than a little wrong here.Might even be a few problems with the kanji, never mind the actual English translation, but I'll see what I can do to improve it as I go.