Greyoll
Three great heroes die before the end of their respective stories. Three great Masters, commanding the manifested souls of heroes long passed to achieve a goal. After finding themselves reborn in another world, will they be able to make a new life for themselves? Will the path of the ninja be filled with glory, or misery? We will find out.
(This is a fanfic, so I obviously don't own shit. Inspired by ZongWeiTan9's work, "Of Magecraft and Ninjutsu." Hopefully, I don't axe this before we get to the good part.)