Red Swordsman in a land of badass female warriors

Returning from a thirteen year self-imposed training trip across the world over, Naruto Uzumaki will protect that which he couldn't when he was five years old. No longer a boy, but a protector, Naruto Uzuamki-Namikaze is about to bring the hammer down on the elemental Nations. In a world of Kunoichi, he now has to deal with the females in his family, and the rest of the continent!