Disclaimer: I own neither Mass Effect or Naruto.

Important AN: This will not be a story where a character from one world gets dropped into another and takes over for the main character, nor will it be a story where we see the sudden appearance of villains teaming up or super powers being given out like candy (like how in some stories people receive training from another story and in a month are godlike or so powerful they are equal to those who have been training for years or decades) . So with that out of the way I can begin with a few notes. For this chapter I will be going with a number of things that would have fit the culture at the time and place, notably the names. They will be written last name first name as was the custom. Also, please note that the crossover elements do not begin till next chapter

Naruto looked up into Tobi's sharingan, releasing all his hatred and rage upon the monster above him. Under the power of his blood lust even the juggernaut before him flinched back. For an experienced shinobi like Naruto that simple flinch was more than enough of an opportunity to launch his attack. Naruto's kunai was mere inches away from Tobi's heart when it was blocked, but the Uzumaki kept pressure on his foe, driving him back and off balance, never letting him off the defensive. As Tobi was driven farther back he phased out of reality and into the dimension of his Izanagi. Naruto followed, Sasuke's Eien Mangyeko Sharingan spinning in his right eye socket, as he entered the dimension of the Sharingan.

Tobi stood waiting for him across the black ground. "It's beautiful, isn't it, this power, this rightful inheritance of the Uchiha." As he spoke he gestured to the world around him. Naruto looked around seeing the empty ground, dead and decaying trees, the crimson sky above him.

Naruto turned back to Tobi "Sorry, but all I see is a crumbling world inhabited by a crumbling, deranged man."

Tobi's eye opened wide in shock, which quickly turned to rage. "What, how dare you insult my power, my right, MY DOMAIN You have no right to speak so of me Uzumaki! I am god, I am the supreme being, this world belongs to me, as do all things in it and I will not have one so insignificant as you defy me! My peace will be eternal and all conflict shall fall to my will! I am urk!" In Tobi's rage his focus had slipped and now he found himself with a kunai penetrating his throat, and Naruto mere inches from him. Their eyes met as Tobi chocked on his own blood.

"Scum like you could never create peace, all you do is bring destruction." With a jerk of his wrist Naruto pulled kunai and cleaved the head of Uchiha Tobi from his body. "And now because of you all I have left in me is hate, just as it was beyond you to create peace so is it to for me." Naruto's sharingan eye spun as he brought himself back to the dimension in which he lived. He looked out upon the world, at the ravaged landscape of war. "To think, that the being who wrought this destruction would be killed with such ease. Is that my fate as well? Will the day come when I am so confident in my own power that I am killed by a single strike without even defending myself? Heh, when did I get so philosophical. It doesn't matter now anyway." Naruto Uzumaki, jonin of Konohagakure no Sato turned and began to walk away.

Away from the battle and away from his one time home. He walked into the distance with no destination or purpose. For he knew he had become a creature of war, once exposed to it he found that it suited him all to well, and that for all his proclamations of peace he longed for the next kill. At first he told himself it was for the feeling of satisfaction that came when there was one less in the world that would hurt him or those that he cared about. But as time passed he came to realize that he enjoyed all kills not just those which might protect those he cared for, so then he told himself that it was the knowledge that despite what everyone said about him, he was the strongest, the fact that he could to it despite how he was put down. But eventually he could no longer keep up his lie to himself. Ever since he embraced his darker half and became complete he had felt his blood lust. He had controlled it for so long, even created a separate personality for it as a child but now he had accepted all of himself and so it was allowed back in. This time however he knew there would be no containing it. The war had stripped him of his naive viewpoint on the world and he could never again let himself be the carefree fool he had once been. It was for this reason that he knew he must leave.

The world would not stand for one such as he in a position of power. And Naruto had fought to hard for peace to allow war to once again consume the world. If that meant abandoning his friends and traveling on alone then he would do it. Because while it would hurt them if he left they would at least survive. And for Naruto, that was enough.

Uchiha Sakumo stalked his prey, leaping from rooftop to rooftop as he watched his quarry move along the road. "What are you doing?" The boy turned rapidly towards the voice behind him, seeing the man who he hunted, who had stolen his father's sharingan almost twenty years ago. Uzumaki Naruto. Just as his father before him upon sighting his target the young genin charged him.

"You'll pay for what you did to my father." Seeing the young genin run up to punch him. Naruto merely looked on, as he had long past the point where the punch of a young genin could harm him. It was only as young Sakumo's fist struck him that he realized the danger. Now, upon his chest was a seal. As Sakumo jumped away from the older ninja chains erupted from the seal and began to wrap themselves around his body, en-capsuling him within their unbreakable grip. Each chain was forged of the highest quality steel, and had hundreds of seals engraved upon them. All for this moment. The moment where he would avenge his father. All the went through the mind of the young boy was his victory. All the went through Naruto's was 'oh, the irony.'

After the deed was done the sealed Uzumaki was snuck back into his home village. The massive cluster of chains that sealed Uzumaki Naruto away was buried deep under the Uchiha complex, with the thought that the recovering clan would always keep it buried there. It was ironic that they would be wiped out a mere two years after burying it in a surprise attack by Konoha's enemies, so as to prevent a shift in the balance of power. And so Uzumaki Naruto lay within ground for many years, suspended in time.