Disclaimer: I do not own Naruto or Harry Potter, or any of the characters from these universes. I am making no money off of this fanfiction.

A/N:

Summary: When Naruto's sister got the Kyuubi, he got soul of a Dark Lord. Now Naruto Riddle will show the Namikaze family on what they missed up on. NO SLASH/YAOI. Neglect Fic.

Pairing: I have not decided on this yet. It will not be a Naruto x Sakura though. Romance is not going to be all that major a part of the story regardless though, and will not start at all until Shippuden. NO YAOI or SLASH!

It could also end up as a pairing-less Story.

Chapter 1: Soul Fishing

Naruto Slytherin was certainly not a normal name.

That was the first thought that came into mind of one Inase Takahashi when she reached on his roll call.

The lad was handsome enough. At least as much as a 7 year old could be. Tall enough to pass for an eight year old, the pale skinned and narrow jawed faced child bore a similarity to none other than their leader, The Fourth Hokage.

She was here to demonstrate about the Ninja Academy and profession.

The havoc that the Kyuubi had wrecked six years ago had been bad. Surely it could have been worse but the fact that Konoha had to come to recruit in this remote orphanage a mile away from the village was a testament to the fact that the havoc wasn't something one could easily shrug off.

Inase continued her scrutiny of the boy.

Naruto had a mass of sun kissed blonde on his head, combed neatly to not to deter his range of vision. The boy was pale, almost as much as the snake Sannin Orochimaru. Blue eyes spitted like a snake didn't help.

Inase almost giggled at the thought of the boy being a love child of the Yellow Flash and the Snake Sannin.

What do you know? Yaoi fan girls could be found even in the Ninja Force.

Her efforts to restrain her giggle made her oblivious to the fact that the boy in question was looking at her with a satisfied expression. Or to be more blunt, at her chest.

How long had it been since the Potter boy had ripped his soul from his body and pushed him to his death.

An eternity it had been since the Dark Lord had been imprisoned in the stomach of the Death God.

It could have been a day for that matter since fickle things like time didn't bind someone like the very embodiment of the Death.

Death had surprisingly been content.

No Boiling water/ Oil.

No eternal tortures for his crime.

Just Content.

No greed or desire.

No Bloodlust or the lust for carnal pleasures.

As a result he hadn't got bored.

Until the Yondaime had summoned the Death God.

Sealing the Kyuubi had gone better than it should.

The Death God had called upon his infinite knowledge of the Arcane Arts and Fūinjutsu and mutated the Eight Trigrams Seal to the Sixteen Trigrams Seal.

It had weakened the intricate relation in the host (Narumi Namikaze maybe) and the Kyuubi to the point that there wouldn't be gradual mixing of their chakra but Kyuubi could be sealed in its entirely and not needed to be split into two parts like it was about to before.

Not a great sacrifice, Voldemort presumed.

Unknown to the Dark Lord however it would prevent Narumi from developing an extreme Chakra Capacity as should have been. She would always have greater chakra capacity by virtue of being an Uzumaki but it would never be as great as it could have been. Chuunin level Chakra levels were great at 13 but they would never be Kage level like it could have been.

Voldemort watched in grim amusement as the hand of the death was about to rip the soul out of the Kage before they paused.

Voldemort was more than shocked when Death tore apart its own stomach with its hands and reached for a dark soul Fragment before imbuing it in the other child.

Within seconds confusion gave way to horror and then to finality,

The soul fragment was that Shinigami, took was his own.

When the other Namikaze twin (Naruto, perhaps) would die, he would drag Voldemort and would finally kill him.

But not before Voldemort influenced him and who knows may even possess him!

Voldemort finally after decades of silence, laughed.

THE WORLD SHALL FEAR THE SLYTHERIN NAME, ONCE MORE!

But alas, the Slytherin curse bloomed once more.

Salazar Slytherin lost his parents to Muggles, initiating a war that took over a thousand year to extinguish.

Voldemort grew up without parents due to his father abandoning him and his mother having gone insane.

Naruto Slytherin was given up by his parents because of his inability to produce Yin Chakra and hence being born ultimately believed to be Chakra less. The Fact that it was a temporary problem and was due to Naruto's body was adjusting to Voldemort's presence in his body was unknown.

Minato believed that Shinigami had stripped Naruto of his Chakra to pay for the Sealing.

Unknown to Minato, Shinigami had not killed Minato was due to Naruto having already paid the debt. Naruto would eventually kill Voldemort and that was enough for the Shinigami.

However if small changes could create Hurricanes then what could Big changes do?

Minato had Hirashined to Tsunade and instantly teleported her to Kushina and prevented Kushina from dying.

Minato had promised on his Will of Fire to kill Shizune if Tsunade disagreed. Morals wouldn't save Kushina, Minato later said. Tsunade agreed.

Naruto was confirmed to be Chakra less by Tsunade and he was sent to a remote orphanage to prevent Iwa from getting any notion of killing Naruto due to him being weaker in the later stages of life.

Jiraiya would never end up in depression and would actually date Tsunade. But even the gutsy Toad couldn't gather enough guts to propose Tsunade to this date.

With the presence of Tsunade, Jiraiya, Sandaime and Yondaime Hokage, the other villages were dissuaded from attacking.

People had their hope restored.

Rebuilding was all that was left.

Naruto was a normal boy.

A little book worm and a bit who loved attention but an all around normal child.

When he had boasted that he would unlock his chakra at 6, the care taker had given him a second hand scroll on chakra for his birthday.

Every boy loved boasting and Naruto wasn't any different after all.

So Naruto did the Goat Hand seal and focussed.

And suddenly the world changed.

Before closing his eyes, he was Naruto. Just Naruto. Naruto with no name. No name associated with great fame or power.

But after closing his eyes, he was Naruto with chakra.

Just before opening his eyes, he was Naruto with Chakra who knew something was wrong.

Before Fainting, he was confused.

Was he a Sixty year old Dark Lord or a 6 year old boy?

And so our Hero fainted.

Naruto barely noticed though. He kept pushing. He took every feeling and emotion he had and pushed as hard as he could. He felt himself entering his mind. . . . . .

Then he entered someplace else. Somewhere new. He could hear an unearthly, blood curdling scream as he crashed through a barrier. The scream of someone in agony. The same sort of scream that had been coming out of him.

Then he realized where he was. He recognized it, somehow. It seemed oddly familiar. It seemed as if he was in his own mind. Or one very much likes it. But the horrible screaming told him otherwise.

He was surrounded by what looked to be a giant cloud. It was completely black, except for small patches that were dark blue or blood red. There were jolts of electricity and energy running rampant inside it.

The whole thing reeked of darkness. So much that it almost overwhelmed him. But there was something else. Something older and stronger than the darkness. It was a feeling of raw power. Power like he had never felt before.

Naruto's chakra didn't hold candle to this sun in front of him.

It was hypnotizing. It was calling to him, telling him to approach. Naruto yearned to touch it. To sink into it, and let it wash over him. He hesitated for a moment, unsure of what he should do. But the yearning feeling was too strong and he plunged straight in.

He was overcome by the power. It smothered him, surrounding him on all sides. And as he absorbed it, he could briefly hear the screaming intensify. He could feel the power inside of him. It was twisting at his soul, bending it painfully.

The pain intensified as the power connected with him. He could feel it attaching to him, welding itself to his own power. Then they combined as one, and his senses were overwhelmed.

A horde of feelings and emotions came to him. Smells, tastes, sounds, and textures. Things he had never felt or experienced before. So much that it blinded him.

A rush of memories came with it, becoming implanted in his mind.

He saw a young Tom Riddle as he put on the sorting hat, and took his place in Slytherin.

He saw Riddle as he discovered his heritage.

As he spent all his time in the library, in his quest for knowledge and power.

He saw Riddle as he learned the Unforgivables, as he killed his father, and drowned himself in the Dark Arts.

Everything from Riddle's life and Voldemort's existence.

And then the knowledge came too. More information than he could possibly imagine.

The basics came first.

The Levitating Charm, Calming Draft, and simple Transfiguration.

All the lessons from the first year to the O.W.L. exams.

Then harder things came.

Human Transfiguration, Advanced Charms, Arithmancy, Ancient Runes, and Magical Creatures.

The Polyjuice Potion, the Draught of the Living Dead, and Veritaserum.

Subjects he had couldn't have possibly studied before.

The knowledge kept coming.

Spells, Potions, and Ritual Instructions that would never be found in the Hogwarts Library.

He learned the Unforgivables in an instant. He learned hundreds of charms, curses, hexes, and jinxes.

All in the blink of an eye.

He learned the Dark Arts, deeper and Darker than anyone save Morgana Le Fay herself.

And Morgana fought Merlin himself!

Rune Magic, Occlumency, and Legilemency. He learned Parsel Magic and Ancient Spells long forgotten. Things only Voldemort knew.

And still the lessons continued.

He learned how to make port keys, how to apparate, how to duel, and how to fight with his bare hands. He learned Alchemy, Healing, Ward Magic, poisons, and antidotes. Languages he had never heard of, much less spoken. He knew all that Voldemort had learned throughout his life.

And then it suddenly stopped. The rush faded away until he could hear Voldemort's screams once again. Those too faded as he felt himself being pushed out painfully.

He could hear voices around him, but couldn't decipher the words. He tried opening his eyes, but lacked the strength. Moving his head slightly, Naruto gave a small groan and promptly blacked out.

People waited and watched.

Naruto was getting covered by a blue glow, blonde hairs levitating independent of gravity.

And then it stopped.

People almost rushed to congratulate him on unlocking his chakra.

Prodigy would people of not the ninja clans would call him.

And then the glow returned.

Stronger and darker than ever.

It continued till the glow got black.

Killing Intent froze everyone in the area from anyone stopping him.

And just after reaching a pinnacle of power, it disappeared.

Naruto opened his eyes and whispered.

"Once a Slytherin, Forever a Slytherin."

"Once a Killer, Forever a Killer"

"Once a Ninja, Forever a Ninja"

Thankfully nobody heard him.

Before Fatigue could drag his soul to the Loving and Warm Embrace of Mother Unconsciousness, Naruto spoke loud enough for everyone to hear.

Occlumens MAXIMA!

Magic roared and flooded the body of the young boy.

From the soul of the Dark Lord it manipulated the soul of the child and changed it in ways unfathomable.

Soon Naruto's own soul was producing Magic in quantities equal to a First Year.

Uzumaki Factor was to blame for no small percentage.

However soon the Magic came across a problem it never had came across.

Magic needed a core.

Magic needed a place to condense in.

Why the very idea of a magical being without Magic was blasphemy!

But it happened.

So Magic did what it had to do.

It tried to create a magical core.

And it failed.

The laws of Biophysical Interactions prevented a presence of two energy cores in a body.

If it happened then they would be forced to fuse together.

So Naruto's Magic fused with his chakra system

Chakra system was forced to expand to hold this new energy.

At 13 Naruto should have had a Low Chuunin level chakra. Now he would have Chakra level just above of the famed Copy Ninja Kakashi himself.

Magic also found something it hadn't found before.

Tenketsu

The chakra points were used to expel chakra.

Magic manipulated them to suit its own needs.

Now Naruto could open and close them with a mental command.

It wouldn't sound much but the fact was that the entire purpose of hand seals and incantations of was to open and control volume of energy released.

And hence Naruto would later learn that he didn't need many hand seals.

Naruto's wandless capability increased by a large margin.

He would always be dependent on a wand for purpose of more powerful spells but the weaker spells would need nothing but intent and knowledge.

Magic also found out abnormalities in Naruto's DNA

It was a little known fact but there were no Genetic abnormality in wizards which were not magical in nature.

Magic corrected the normal non-magical genetic diseases to increase one's survival chances.

Hence magic corrected.

Uzumaki clan was descendent of the Sage of Six Path.

Hence they had DNA markers of Uchiha and Senju family.

The Rinnegan was present in low quantities and hence destroyed.

The Sharingan was present in enough quantities for enhancing the eye vision but nothing more.

The Chakra chains were heavily present. They were simple.

But the magic was never simple.

It deemed the fact that the Uzumaki metal could take only chain forms to be faulty.

Magic corrected it.

The Last was the Senju family's Mokuton.

It was luckily present in just enough quantities to be salvaged.

Naruto's elemental affinities were rewritten to be Earth and Water in equal quantities.

The Life giving properties of Parseltongue had made the Dark Lord to be the best Healer in the world.

There was a reason why the symbol of medicine was a snake on a staff after all!

The same Life giving property of Parseltongue Naruto gained from the Dark Lord.

When combined with Mokuton DNA, Naruto became the second person in the world to wield the full power of Wood Release.

As interesting, the working of physical world and Naruto's Blood work was, it was his mind that took place.

Occlumens Maxima was a spell to reinstate one's Occlumency shields to their full capacity.

Occlumency was the defensive part of the mind arts. It not only organized memory and thoughts in impeccable way, it allowed mind to function at its maximum capacity. It allowed one to memorise and retrieve information at almost eidetic level.

It also prevented one from going insane, like Naruto would have.

All the information except the most vital had been locked away instantly.

Now the only question to the mind was.

Was he Naruto or Voldemort?

We use less than a 1% of our full capacity in day to day life. Magic prevented Naruto from going insane by using the full capacity.

The answer was surprisingly easy for the mind working at its 100% capacity.

He was Both.

Time to shake the world, once more.

Author's Note-

Credit to "Of blood and power" by Daylon

Updates will be slow.

Expect Kaleidoscope of Magic to be updated first