Lighting Up the Dark

AU inspired by an omake in HPMOR. 12 years ago, the Fourth Hokage gave his life to seal Kyubey, the Nine-Brained Demon Fox, into the infant Naruto. Now, the time has come for a smarter, more creative Naruto to take on a world in which quick thinking and a solid grasp of strategy are worth a dozen rare techniques, and a brilliant mind can challenge even the deepest darkness.