Story Challenge - Distorted Image (supplementary title)

There are infinite realities out there - some happier then others. What happens when the world of Earthland is instead permeated with something never before seen? And what happens when a long-dead echo comes back to haunt them, twisted by the new nightmare set upon them? (This is a challenge/outline for anyone wishing to attempt a crossover with Fairy Tail and Tokyo Ghoul)