Erza always knew Natsu would one day be stronger than her. His hidden power was something she was always aware of. When the battle with Phantom Lord begins to look bleak, Erza urged Natsu to unleash his power. However, what happens when Natsu was hiding even more than Erza could have imagined? Just what is Natsu Dragneel? Dragon, or demon? Why not both? The world will know soon.