Disclaimer: I do not own Naruto. Trust me, if I did, it would be a lot different.

Note: The title will make a whole lot of sense later; right now it doesn't exactly.

This is my first fanfic, and I really started it out of boredom. I'm not sure if it'll go anywhere, but please read and review. It's basically what I think could have happened if a certain part of the story had gone a tad bit differently.

"Demon Talking"

"Normal talking"

Thinking.

Chapter 1: Dangerous Powers

The chirping noises masked the small 'clink' the necklace made as it hit the floor. The owner of the necklace, a blonde, struggled to get up. He managed to get his upper body off of the ground before wincing. He could feel a very familiar burning sensation on his abdomen.

The blonde looked around, seeing his new captain backed against a rock with a sword in his shoulder. He looked over to the one that was holding the sword, a raven-haired missing nin that the blonde had been searching for. The blonde locked eyes with him; both pairs of eyes a dark red.

The blonde then found himself in a familiar sewer-like chamber. He looked up at the bars of a large cage.

"Why don't you use my power, kit?" The voice echoed around the dim chamber, sounding even more sinister than the blonde could remember.

"I'll use it," he answered. The demon smirked. "But not yet," the blonde said before the fox could say anything else. "I need to know something first."

If he had an eyebrow, the Kyuubi no Kitsune would have it raised. "Oh? What is it?" He asked, wondering what it was the brat could want.

"I… Well, I need to know if you could keep a promise," the blonde said, keeping his eyes locked on his reflection in the water.

The Kyuubi chuckled. "That depends. What's this 'promise' you want me to make, kit?" he asked.

The blonde was uncharacteristically quiet for a few long moments. "I need you to promise me that if I do use your power, I won't hurt Sai, Yamato, or Sakura. And, most importantly, that I won't kill Sasuke."

The Kyuubi chuckled. "Well, Naruto," the fox said, calling the blonde by his name for one of the first times, "I can't promise you anything then."

Naruto nodded. "Well then can you promise to try at least?" he asked, hopeful for the answer he wanted.

The Kyuubi sighed. "Fine, I'll try," he lied.

Naruto smiled and started to walk toward the cage that he was normally afraid of. He stopped short after a few steps. "Sasuke…"

"What's this?" The raven-haired nin asked, looking around for a short moment.

Naruto stared at his old friend. "How did you get here?!" he asked, startled.

Sasuke shrugged. "Who cares? All that matters is that I'm here."

Naruto clenched his fists. He had searched everywhere for Sasuke, and had just now found him, but Sasuke could find him even in his own mind? It wasn't fair!

Chakra bubbled in front of them both, until it resembled Kyuubi's head. "Those eyes," he examined, "An Uchiha. Well, you've come far to be able to see me here. Those eyes of yours, they hold power similar to that of Uchiha Madara's. Maybe even stronger!"

Sasuke glared at the Kyuubi, "Hmph," he mumbled, not sure of what to do. This Kyuubi was just a manifestation of chakra, so all he could do was dispel it. He eyes traveled to Naruto. He could, however, try to kill Naruto here. Wherever 'here' was.

Naruto gritted his teeth, memories surfacing in his mind, while he looked at Sasuke.

Now Kyuubi was addressing Naruto. "You want to crush him! Use my power and do it!"

Sasuke glared at the Kyuubi. "So this is where you get that weird power from. Right, Naruto?"

Naruto nodded. "Yeah. This is where my power comes from." Naruto looked back at the Kyuubi. "Why? Why should I use your power? Yamato-taichou… he said that if I used your power, the seal would weaken and that I would hurt Sakura-chan and everyone I care about."

Kyuubi laughed. "My power will make you stronger! Strong enough to take down this Uchiha."

Sasuke had had enough from the fox. He gripped its nose and forced the chakra to dispel. It didn't end up helping him much, though, since the chakra just went and gathered around Naruto.

"Oi! Kyuubi! I said I didn't want to use it!" Naruto yelled, looking toward the cage.

The Kyuubi chuckled. "It's never stopped me before, has it?"

Naruto glared at the bars, then nodded. If he was quick enough, it might work out.

He was willing to do anything to bring Sasuke back.

Outside of Naruto's mind, nothing had happened for a few moments and a pink-haired kunoichi was starting to worry.

Neither of them has moved for the past few minutes… What's going on? She asked herself, not thinking that she could have done something to help the situation already.

Both of the shinobi blinked and went into action. Sasuke pulled his sword out of Yamato's shoulder and faced Naruto, who now had the demonic chakra surrounding him.

"Sasuke! I'm going to bring you back to the village, no matter what!" he yelled, baring his newly acquired fangs.

Sasuke shook his head. "So you've worked this hard to bring me back. Too bad it won't even work! I should have killed you back then," he said, causing Naruto's anger to reach an even higher level, which brought about another tail of demonic chakra. "Then at least you wouldn't have seemed so pathetic." He spit out the word, almost laughing at Naruto.

Naruto now had three tails waving around in the air behind him. He knew that the next tail would come soon, so he hoped that the Kyuubi would stay true to what he had said.

Sakura stared at her old teammates. Why? Why are they fighting like this? She asked herself in her mind, not moving.

Sasuke had activated the cursed seal, not enough to reach the second stage, but enough to give him a huge chakra boost.

Sakura finally snapped out of her trance. "Naruto! You don't have to do this! I'll help bring Sasuke back!"

"No! This is the only way to bring him back!" Naruto yelled in response.

"Oi, Naruto… remember the talk we had. You have your own power, you don't need to rely on the Kyuubi's," Yamato said, trying to calm Naruto down. Jiraiya never said anything about Naruto using the Kyuubi's power to this extent more than once a day. I can tell it won't have any good side effects.

Naruto could feel his skin burning. Behind him, chakra was starting to bubble up as the fourth tail appeared. Sasuke remembered that the last time he had fought Naruto; he had used the same power, but only with one tail behind him. He didn't understand the connection exactly, but he did understand that Naruto was getting more powerful with the creation of more tails behind him.

Sasuke's figure had disappeared for a moment, but then he reappeared behind Naruto. Without saying a word, he plunged his uncharged katana towards Naruto's heart.

Sasuke's eyes widened in shock when the blade stopped dead. Then he remembered yet another part of his last fight with Naruto; that red chakra protected him from attacks. Sasuke gritted his teeth and jumped away to prevent being hit.

A black orb had now surrounded Naruto from his burning skin and drops of his blood. After a few minutes, the orb disappeared and only Sasuke was surprised when he saw a miniature Kyuubi; everyone else there had already seen it.

Sasuke could feel how powerful Naruto was now, so he knew that he would have to kill Naruto on the spot before he was injured. He quickly charged a Chidori through his katana, so now it would be able to cut through anything.