Mercy. Gray Fullbuster wonders why the word is on his mind, even as he stares down what may as well be his worst enemy. Perhaps it is love for the fake the demon has created. The lies Natsu- Etherious- weaved, tricking him into this mess. So, Gray thinks, this is how the entire thing ends. With him slaughtering the only thing he loves anymore. But he owes Natsu mercy for so many things. But, a demon deserves no lenience. - First, he fell for his best friend. Then, he fell for a demon. Can he save Natsu? Can he kill END? He needs to decide before his whole world crumbles before him... His feelings and his hate weave an entangled web of revelation and affection Gray can't seem to crawl out of. -- Gratsu. Sad end. Prepare for madness.