Aion - Ascension
In the abyss, a constant war happens against the Asmodians and Elyos. They have been enemies since they got separated by the Cataclysm. The Asmodians are a brave and hardy people, separated from the Elyos by the Cataclysm and plunged into the upper half of Atreia, a world of darkness and despair. While the Elyos occupy the lower half of Atreia, known as Elysea. After the Cataclysm, they found themselves bathed in sunlight for over 750 years and, as a result, have transformed into a beautiful and radiant people. Ecclesia is an Asmodian who is a loyal member to the Ulgorn Raiders, the lowest group there is. Her loyalty pays off when she is sent on a quest with her accomplist, Cassiopeoa, and discovers her true potential.
This is a Fan-fiction from the game Aion (by NCSoft). I got most of the basic story plot from them so they get most of credit! If you haven't heard of it or played it, then you should go check it out! It's one of the best online MMOs i've played.