Disclaimer: I do not own Harry Potter or Naruto

Full Summary:

Megumi was not pleased. Not one bit. - After the final battle with Madara and Akatsuki, Naruto was forced to seal the incomplete, rampaging Juubi into himself. Unfortuantely for him, this made him the next Juubi, and therefore, immortal. Nearly a century later, a friend he met on his travels asks for a favor. Never one to deny his friends, Naruto answered Dumbledore's plead and sent his daughter to help protect Hogwarts and a certain green eyed wizard. Harry Potter/Naruto Crossover

Prologue:

Megumi Namikaze was not happy. Not one bit. After all, she was being thrust out of the hidden world that she lived in, and thrust into the outside lands that nobody, aside from her father actually knew anything about.

It was her mission, and apparently a visit to her 'godfather'.

Or at least, one of her father's friends who was going to pretend that he was her godfather.

Damn. Why did it have to be her dad that to discovered that the ninja world was actually a carefully crafted, impossibly intricate pocket dimension?

Oh yeah, it's 'cuz he's Namikaze Uzumaki Naruto.

Apparently the Rikuddo Sennin was way more powerful than anyone thought; because in his quest for peace, he realized that those in the other lands would never listen, too caught up in their greed and corruption.

Upon making this discovery he placed an impenetrable, undetectable barrier and genjutsu over the continent he was on and used time-space manipulation techniques to expand the continent and create a whole new world; a world that could accept his message and find true peace.

Unfortunately, that didn't happen, and after his death the land became even more war torn than the land that he had just separated them from; until her dad came along, of course.

Her father, the man who defeated Akatsuki's leader and the savior of their world had done the impossible and defeated the nearly immortal S-class nin, along with the incomplete form of the Juubi.

Unfortunately, in order to do this, he had to merge with the Kyuubi and the remaining parts of the Juubi; essentially becoming the Juubi himself.

However, this did not matter to anyone. He had saved their world. He was their hero. He could be trusted to use his power wisely.

And true to their expectations, he did.

He became the Hokage of Konohagarature and united all the nations under one allied group of powers, which he was then chosen to be the head of.

The world was prospering, he was happily married to Haruno Sakura, he had loyal friends and wonderful children.

All was going well, until he noticed he was not aging. The merge with the Juubi had made him immortal, more of a demi-god than a human.

And so, in order to at the very least look like he was aging with his wife and his friends, he placed an elaborate genjutsu on himself to make it appear as though he was aging normally until he could find a solution.

Unfortunately, he could not find a way to relinquish his newfound power, and he was fruitless in his quest to find a way to keep his wife immortal with him.

That genjutsu broke on the day his wife died, and he found that he appeared younger than his children, and only a few years older than his grand children. He was devastated.

Of course, he withstood the grief to be with his old friends throughout their final years; and then ten years later, when Gaara, the last of his friends from his generation died, he decided he needed some time away.

And so, the alliance elected a new leader, (though Naruto with his immortality and wisdom would always be accepted as the supreme advisor) and gave their good faith to Naruto before he left.

Thirty years later he returned; bringing news of an absurdly powerful barrier, pocket dimensions, wizards and witches, magic (a diluted form of chakra), a man named Dumbledore, and a world linked ― but at the same time separated from ours.

A separate world kept at bay by a barrier which only he had enough power to cross.

And while this news was intriguing, my mother was far more interesting.

Soon after he returned to the Elemental Nations, he met my mom while wandering through the Village of the Leaf.

She had been running through the village and crashed into him, landing the two of them in a highly inappropriate position. Once they cleared the awkward after tension, they hit it off and quickly fell in love.

Then Dad learned that the woman he fell for was his old Kakashi- Sensei's great granddaughter who was only eighteen years old; and despite the fact that that was the age he was frozen at, he still felt like a dirty old man.

Until mom beat some sense into him, that is.

Pretty soon they were married and dad found a way to make it so that she would stay young with him (he had discovered it during his thirty year pilgrimage). He found that by intertwining their souls through an old demonic ritual, and thus making her his official mate, she would become immortal.

It worked, and mom became immortal with him, and dad was happy.

Then they had my brother Arashi, a spitting image of my father; then they had me; then they had Yuuki the adorable mini mom; and finally they had the twin terrors Ryyu and Akio, who both shared the same gravity-defying silver hair that their great-great grandfather Kakashi had possesed.

Life had gone on normally from there. Mom and dad were the greatest, if a bit (a lot) eccentric; and my siblings and I all got on great (sometimes).

Yeah, everything was great. Until I turned eleven.

When I was eleven, dad got a message from a two way mirror that his friend Dumbledore had given him.

Apparently, the old man wanted to hire a ninja that my dad could bring to help protect his school and a certain charge of his.

This year, The Boy-Who-Lived would be coming to Hogwarts, and despite his belief that the school was safe he wanted to be extra cautious and hire a ninja who could blend in with the students and protect them if needed.

Apparently since I was already a skilled chuuin who just so happened to be at the same age as this Harry Potter fellow, I was perfect for the job.

So, of course, I argued. And, not so surprisingly, I lost.

Now I was outside the barrier in a weird world standing next to my dad as he introduced me to the man wearing a purple dress (He called them robes, but there is no way that that isn't a dress!) with the longest beard that I had ever seen.

When I would go to England in two months I would be placed as a first year student, sorted into a house, and remain as a student for the next seven years.

Wonderful.

Author's Note: Hi! This is a story that I've had on my computer for a while. I thought that the idea had a lot of potential and I really want to build on it. I have chapter one completed, but I wrote it a long time ago, and looking at it now, the character seems a bit Mary Sue, so I'm going to edit it and change her up a bit before I post it. Hope you liked this!