I believe I now know who or what created ninjutsu. Some1 may have already said it but here it is...
We know that everyone assumed the sage created ninjutsu but he clearly said he did not. In this last chapter bz said I created the story of shinobi.... I beleive this son aka black zetsu is who created ninjutsu. For his story he figured out how to make ninshu into the weapon.. he created ninjutsu.
We know that everyone assumed the sage created ninjutsu but he clearly said he did not. In this last chapter bz said I created the story of shinobi.... I beleive this son aka black zetsu is who created ninjutsu. For his story he figured out how to make ninshu into the weapon.. he created ninjutsu.