The First Onikage (currently being rewritten)

Naruto is the Hero. The hero of the world, but shortly after he achieves his life's ambition something happens to change everything. What will he do when he's thrown into another where the heavens and hell collide. Will he be the change that brings the eternal war to an end. New friends and enemies await! /Naruto x harem Issei x harem / lemons and fluff later on.