Earth

A world not unlike ours, but instead of wars of religion, it's a final war between God, or "Him", and Lucifer, or "The Evil". One side, the side of evil, is led by Zion Rache and their goal is to either kill or convert the side of good to their cause. The side of good is led by Syvette Sanchen, and their goal is to convert the side of evil.   Zion is a man of religious upbringing, but to his misfortune that same upbringing is what elected him as a candidate to be the leader for Lucifer's army. He was picked some time after Syvette as well, giving him a disadvantage in experience. Due to Lucifer's intervention, his childhood could literally be called hell, and it drove him to seek revenge on God and Lucifer once their war was over with.   Syvette was originally a rebellious, and technically evil, girl growing up. She strived to cause pain to others, getting a small amount of satisfaction out of it. This is what made God chose her to lead his army, to have someone that would know how to help people with evil into their hearts find the way to good. Unlike Zion, her life was not filled with pain and suffering, but rather stress and worship.