Disclaimer: I don't own any of the Naruto characters.

The Secret life of Uzumaki Naruto

Summary: What if Hatake Kakashi had adopted Namikaze Uzumaki Naruto at birth and raised him within the ANBU Headquarters? What if Naruto was smarter and stronger then he had led others to believe?and what if the Uchiha clan had not been massacred but moved somewhere in secret? Konoha is about to find out just how much they did not know about the golden haired shinobi.

Chapter 1

Tsunade growled as once again the shinobi's she had sent out came back empty. It had been nearly half a year since the blond boy that she had loved like a grandson had disappeared, without a single word, he had up and left. The busty blond turned and glanced out the window with a frown. She knew Kakashi and Iruka knew something because for being the closest to the boy, the two were awfully calm about his disappearance. At the least she would have expected Iruka to be distraught. But they had been calm.

Too calm.

Narrowing her eyes at the thought, Tsunade spun around and stared at the photos on her desk. There was a photo of Naruto with Kakashi, Iruka, the Sandaime and several masked shinobi's. Naruto had looked to be about six or seven in it. Another picture was of Naruto, and his male friends from the rookie 12. There was another picture of him with Ino, Hinata and Tenten. And several others including a Naruto being surrounded by a falcon, dragon and tiger mask shinobi's.

Leaning back in her chair, Tsunade glanced around her office. She was upset that no one not even the best trackers and hunters could locate the boy she considers to be her little brother. Eyes rose to look at the Hokages pictures hanging up on the wall, well more specific the photo containing the fourth Hokage.

After a while of just staring at the picture, her eyes widened. Jumping to her feet she ran towards the wall and rose her hand in front of her body. "Kai" she called out. Lifting her arms upward, Tsunade removed the fourths picture to reveal a safe. With a combo lock.

Trying different numbers in hopes that it would unlock, Tsunade growled in irritation. She knew there must have been something in that safe, after all if it was nothing important then there would've been no need to hide the safe under a genjutsu, a very strong one at that seeing as so much people, shinobis at that, have been coming in and out of this place for years and not one, even those who are genjutsu masters could sense the illusion.

After another failed attempt at breaking the combo, Tsunade contemplated just punching a wall through the safe when from the corner of her eyes she saw three numbers.

10.10.1

Spining those numbers into the lock, Tsunade cheered when the lock click and opened revealing several papers. She groaned at the thought of reading through them all. Hefting the pile and placing them on the table, Tsunade closed the safe and covered it with the Yondaimes photo.

Sitting in her chair she began reading through the different papers. Marriage lisence between Namikaze Minato and Uzumaki Kushina. There were pictures of Minato and his genin teammates along with Jiraiya. Picture of Minato with his own genin team. An official letter stating his wishes to adopt Hatake Kakashi.

There was a lot of things hidden in that safe, most of the things important to the Yondaime. Tsunade smiled at some of the letters that Kushina had written to Minato when he was away on missions. The last thing left after Tsunade was done rifting through all of those papers was a folder with the name Namikaze Uzumaki Naruto also known as Hatake Naruto.

With wide eyes, Tsunade opened the folder and saw several letters and what appeared to be a key of some kind in the shape of a fox's head. Reaching out she fingered the folded letters. She would bet anything that whatever was written had something to do with the blond brat she considers a brother and his mysterious disappearance.

Coming to a decision, Tsunade decided to read the folded letters last and read through what looked to be an official document, and gasped at what she read. Quickly scanning through all the other documents detailing how Kakashi had changed his name back to Hatake as well as having Naruto's changed as well. Knowing if they kept Namikaze as their last name than war would no doubt come to Konoha because of Iwa's hate for Konoha's yellow flash. There was also documents stating how Kakashi had raised him at the ANBU HQ, since he would have been better protected there. About his achievements, developments and enrollment into the ANBU. And how he was tasked with entering the academy to watch over Uchiha Sasuke after the massacre.

Opening all the folded letters and reading through them, Tsunade slammed them on her desk and yelled for Shizune to gather the rest of team Kakashi as well as teams Asuma, Kurenai, and Gai. Along with them she asked for Iruka, Anko, Ibiki, an neko masked ANBU, an Usagi masked ANBU, Genma and Hayate.

An hour later and everyone was gathered in her office and Tsunade stared at them before turning to look at Kakashi. "How long?" she whispered confusing everyone present and causing the copy cat to raise an eyebrow in confusion.

"How long what, Hokage-sama?" Kakashi responded voice neutral, face blank.

Slamming the folder on the table, Tsunade narrowed her eyes, "You knew Naruto the longest. And I bet he told you where he was going, did he not!"

Kakashi frowned and glanced at the papers that fell out of the folder when Tsunade slammed it against table.

Hatake Naruto. ANBU, codename: Kitsune. Taishou to squad 3 consisting of Dragon, Falcon and Tiger. A genius second to none. Raised at the ANBU Headquarters. Trained by numerous ANBU operatives along side his older brother Hatake Kakashi, the Sandaime Hokage, Uchiha Itachi as well as a mysteriously secret man who means no harm to the village or anyone else as long as Naruto isn't threatened.

Hatake Naruto is a shinobi whose genius can only rival those of the Yondaime Hokage, Namikaze Minato, Hatake Kakashi and Uchiha Itachi.

Genin at four, chunin at five, jounin at six, ANBU at seven. At eight he had reached Sannin level and was co captain of squad ten, codename team Aves under Uchiha Itachi and at eleven he became captain of squad three. codename Elements.

While all of this was going on, Naruto had also been given another mission, enter the academy under the name Uzumaki Naruto and watch over Uchiha Sasuke after Itachi left the village under the pretense of a clan massacre. He was to spy on a new up and coming organizations whose ideals and goals were unknown.

Kakashi stopped reading by then and turned his single eye towards the rest of the papers just glancing at them not really reading them or anything. Each of the papers were details of Naruto's past missions and missive's from Itachi to Naruto about how he was doing and about the organization. There were also some requesting a meeting between the two at Kumogakure.

Kakashi glanced at Tsunade and nodded his head, "It is true that I do know more about Naruto, the real one than most people here in this room but it is also presumptions of you to think that I would know where Naruto is." the copy nin narrowed his eyes "And no, I don't know where that boy has gone off to but if I was to guess it would be to Uchiha Itachi. The two are close to each other. They have always been close as you have seen."

Several gasp rang out after Kakashi uttered that name. And a growl rang out.

Tsunade sighed and rubbed her temples, "If you don't know where he is, than why are you so calm? Seeing as you and Naruto are brothers I would think that you would be worried about him."

Kakashi smiled, "I am worried about him Tsunade-sama but I am also very aware of his skills and I know that he can take care of himself so my worrying about him is all for naught."

"What is going on here?" Ino questioned, confused. "And what is this about Naruto and being strong. He is only a genin. I mean we only graduated the academy a few months ago."

Tsunade sighed, "Well that would be the wrong thing to label Naruto."

"What do you mean?" Chouji questioned.

Surprising to everyone, Neji spoke up, "Naruto-taichou isn't a genin. From the time he had been at the academy he has never been a student, he was an undercover ANBU operative whose mission was to keep an eye on Uchiha Sasuke."

"Neji? What are you taking about?" Tenten questioned, confused. "Beside up till a few weeks ago, we didn't even know who Naruto was."

The brunette sighed. "That is not true. I have known Naruto, the real one, for years. Naruto is an ANBU captain. His the captain of an ANBU unit named Team Element along with dragon, falcon and tiger."

"And how do you know that Neji? I just found out about it?" Tsunade narrowed her eyes.

Iruka shook his head, "It's because he is falcon. A member of Naruto's squad. He was sent to the academy to watch over Naruto."

"What do you mean?" Kiba voiced his question loudly

Anko grunted, "Man we might as well start from the beginning. But to answer your question, Naruto is a lot different than he had led you all to believe. And the one reason that Neji was asked to keep an eye on Naruto was because Naruto suffers from bouts of uncontrollable insanity. And with out Itachi around to help him, that blond haired brat needed someone there. Tiger and Dragon had a seperate mission or else they would have been there as well,."

"Insanity? What do you mean? For as long as we've known Naruto, he has always been a bit hyperactive, loud, and a bit clumsy but I've never seen him show signs of being unstable. " Ino questioned, frowning.

"For you to understand, like Anko said we need to start from the beginning." Kakashi sighed and shook his head."But before we begin, Neji, if you please."

Knowing what Kakashi wanted, Neji flared his chakra. A few seconds later, two males appeared in the room, worried as they scanned the occupants.

"Neji. are you hurt? Do you need our assistance with something?"

Neji smiled a bit but shook his head. "No. They just found out about us and Naruto-taichou."

"Aa, so da ne. It took them a long time, ne?" a black haired boy grinned adjusting his tanto.

Neji grinned, "What did you expect, Taichou is a good actor and if he didn't up and leave I believe they would have continued to believe that he was just a hyperactive, knuckleheaded, shinobi whose only real talent is pranking and being loud."

Sai and Shin exchange looks and smiled, "Yeah, we heard about that loud mask."

"Excuse me, sorry for interupting your conversation, but I believe we have more pressing matters right at this moment, such as the whereabouts of Uzumaki Namikaze Naruto." Tsunade growled out, a noticable twitch ticking on her forehead.

"Oh right, well like I said, long story so sit down and get convertable and we will tell you the reason for Naruto's bout of insanity, though I will warn you now, that if you are weak minded and can't stomach listening to how awful Konoha's people have been towards someone that you have gone to school with for years now, than I suggest you excuse yourself from this room." Anko spoke up.

When no one made any move to leave, Anko nodded and bega telling the painful begining of Naruto's life.