God & Demon (An Attack on Titan story)

Gods make the World, and Demons change it. How many Demons will it take to change this Cruel World? Which Demon will succeed, which Demon will fail? I, Amos, must succeed. For I will do anything to give my children a chance at life. Even if that means becoming the worst Demon who's ever walked the Earth. OCxMikasa, No Bashing and NO EREN BASHING, Canon will be modified.