Disclaimer: I don't own Harry Potter or Naruto.
Divine Intervention.
Prologue.
He walked through the house that had once been a happy home but now resembled a war zone. When you're a nigh-omnipotent immortal, there really isn't much to keep you entertained. Which is why they watched the lives of mortals. Normally, he was not one to get involved in the affairs of mortals, content to just watch like the others of his kind. But something about this mortal, in particular, made him want to get involved. He thought to himself as he gazed upon the one-year-old with a bleeding wound on his forehead.
He had watched this boy's life, his triumphs and his sorrows, and for the first time in an eon, he had been moved. That was why he was here at the start of the boy's story, to intervene on his behalf. It had been a relatively small thing to make the boy's grandmother survive long enough to meet her grandson. And what loving grandmother would miss an opportunity to watch and spoil her only grandson while his parents attended a meeting?
The poor old woman had been very brave, but he supposed bravery was a staple of the Potters. As he gazed down at the body of the old lady, he felt a small pang of guilt. But her sacrifice had saved the child, just as his mother would have done had she been here. This one act would ensure the boy grew up in a loving home. But now he would help the boy a little more before he let time resume its course.
Looking at the lightning bolt-shaped scar on the boy's forehead that marked the child as Tom Riddle's equal. But they hadn't been equal, he thought. Not really. Tom, for how truly evil he may have been, was a genius on the level of Dumbledore or Grindelwald. The boy before him, while intelligent, was not! But he could change that. And give the boy a better shot than he had the first time.
Touching the still frozen-in-time child on the forehead, he pulled a sickly green mist from the wound. The evil twisted soul fragment reeked of evil, but it would be gone soon. He just needed to pull some things from it to give to the child. Pulling Tom Riddle's talents from the fragment as well as his intelligence to give to the young child, he willed the soul to dissipate into nothingness.
`"That takes care of the 'marking him as his equal' part," he thought to himself. "Now for the 'power He Knows Not.' But what power should that be?" He had watched many powerful mortals from many universes. But which one would most help the boy? Of course! He had the perfect one. He would give the boy a power never before seen in this world... the Sharingan! And not just any Sharingan, but the Sharingan of a shinobi named Obito. The child would awaken it in time; he was sure.
Having done all that he could do for the boy, he unfroze time and disappeared as if he had never been there at all. The boy's parents would soon arrive, and this night would go down in history. Many would soon give toasts to Harry Potter, the Boy Who Lived.
End Prologue.
A.N this is a little Plot bunny that hopped in my head. So I thought why not. The only problem? I not a very good or consistent writer! I'm still going to try to update this as much as I can. But I also want to challenge any writer who reads this to take this plot bunny and give it a new home in you own writing.
My only requests? Please make it cannon couples. As little bashing as possible. Good Dumbledore.(The man is not evil. He's just not very forthcoming with the facts.) Other than that make it your own. Meanwhile I'll try to update as I can.