NARUTO: LEGACY

Disclaimer: I do not own Naruto.

Prologue

(Naruto Age – 6 years)

Naruto has no idea how he came to be here. The last thing he remembers is his fight with Uchiha Madara and then waking up as a 6 year old in his apartment. But that wasn't the most shocking news. He somehow has a twin sister now living with him. That's the conclusion he came to anyway after the girl who looks like his mother jumps on him and called him 'nii-chan'.

He kept quiet as he tried to make sense of how he came to be here while his twin sister kept on babbling about getting ready to eat breakfast. He learned her name through her babbling as Kasumi.

"Okay kasumi-chan! Let's get ready before going for breakfast." answered hoping to divert her attention so that he has more time to think about his current situation.

After getting ready, Naruto let Kasumi lead him to a restaurant near the apartment. As he was walking he casually looked at the Hokage Mountain and got the biggest shock! There in place of the yondaime hokage instead of his father Minato Namikaze there was another person whom he couldn't recognize.

While having his breakfast in the restaurant he came to the conclusion that he must be in an alternative universe. Since he is in an alternative universe his first priority should be to learn the differences between his universe and this one. He wondered whether Kyuubi was sealed within him or not. He tried to sense Kyuubi within him but he couldn't feel the beast. He supposed that perhaps he need to visit the seal to confirm the presence of Kyuubi.

"Nii-chan are you alright? You have been acting very strangely today." His sister enquired with a tone of worry in her voice.

"I am fine. Just thinking" he answered hoping to assuage her worry."Let's go and play in the park".

He spent the whole day playing with his sister in the park only stopping to have brief lunch at the same restaurant. As the day progressed he noticed that none of the other children played with them and the adults sent brief glares at them when they were not looking but more at kasumi than him. He thought that maybe his sister contained the Kyuubi and it would be the most logical choice to since the two previous Kyuubi jinchuriki were both female uzumakis. He just needed to confirm it.

After he was sure that his sister was sleeping he tried to enter his seal but found that he couldn't enter it. He checked for the seal on his belly but since it's only visible when he was channelling his chakra he couldn't confirm its presence. So for the rest of the night he tried to access his chakra. By the time he was tired he managed to access his chakra but didn't have the energy to channel them through his chakra coils. With nothing left to do he slept for the night.

Next day arrived too early for his liking. While having bath he channelled some chakra to his coils and saw that no seal appeared on his belly. This confirmed that his sister was the one in whom the Kyuubi was sealed. He wondered if his sister inherited their mother's special chakra. He supposed that he will have to find out.

For the next few days he continued to spend his days with his sister playing in the park, roaming the village streets and sometimes just staying in their room. He noticed that his sister was more subdued when she was in the presence of others and never moved too far from him. He thought that maybe the villager's glares were getting to her. So he started glaring back at them and hoping to diver their attention to him. He could see that it was working to an extent, so he kept at it. He enjoyed playing with his sister and just spending time with her since he never had any siblings or for that matter friends in his childhood.

During the nights he continued trying to access his chakra and channelling it into his coils so that they can get used to it. After about a week of doing this he noticed that his pitiful reserves have increased slightly.

He also learned the identity of fourth hokage who happened to be Hatake Sakumo 'The White Fang of Konoha'.

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(1 month later)

Naruto crept silently through the dark streets of konoha and avoid detection as he tried to reach the Academy building.

In the past month Naruto has slowly developed his chakra and has been doing the chakra building exercises. He discovered that by combining nature chakra with his normal chakra though he can't achieve sage mode by mixing them in unequal proportions (nature chakra less than spiritual and physical chakra) and increasing the pressure on his chakra coils he could increase his chakra capacity. He also noticed that he had limited sensing capabilities when he does that. Through this he discovered that both of them were being watched by Anbu during the nights. He was just lucky that they didn't detect his chakra surges since they were very weak when he accessed chakra for the first time.

His chakra has increased to the level that he can make two kagebunshins without collapsing. He practised the hand seals, replacement technique and the henge technique to get the muscle memory. He completed the Tree climbing exercise in his room by trying to climb the walls.

Right now he left his kagebunshin with his sleeping sister so that the Anbu watching them wouldn't be suspicious. He figured that he should target the Academy building first since they will have information regarding the history of elemental nations since it would help answer the questions of How Hatake Sakumo became the Fourth Hokage and why he and his sister go by Uzumaki rather than Namikaze if his father wasn't the fourth Hokage.

After going through the standard academy history books he found out that the main difference between the two worlds was that Sakumo in this universe has completed his mission rather than choosing to save his teammates. Due to this the Third Great Shinobi war almost ceased with the completion of his mission and he was soon elected to be the Yondaime Hokage. Another major change was that the Third Great Shinobi war occurred in two phases, i.e. one before the mission of Sakumo's and the other started after a brief 8 months of ceasefire between the nations with the attack by Iwa. The war was quickly ended by his father with his Flying Thunder God Jutsu. He even got the name of "Yellow flash" for it. Later when the Kyuubi attacked his father is hailed as hero for stopping it. He concluded that they weren't given his father's name due to his enemies.

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(Naruto Age – 7)

It's been a year since he arrived in this Universe and Naruto was happy with his life. He mostly spent his time with his sister and making her happy. She is no longer afraid to be in other's presence but still clings to him. He tried to get them admitted into the Academy but they were rejected saying that they need to be at least 8 years old. They were also visited by Sandaime Hokage twice and by Kasumi's reaction he deduced that he had visited them before.

In regards to his training he could be considered to be at genin level overall but the area he most excelled was in stealth by necessity. He also increased his chakra levels to that of a chunin.

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(Konoha Hokage's Office)

In the Hokage's office Hatake Sakumo, Sarutobi Hiruzen and Shimura Danzo are meeting to discuss regarding nine tails jinchuriki.

"We need to do something about the influence Naruto has on his sister." said Danzo.

"Yes, kasumi seems to listen only to Naruto on all matters from the observations conducted by the Anbu. This could be problem when they grow up. We need to lessen the influence he has on her." says Sakumo.

"We should separate them. Give me the girl and I will train her to be able to use the nine tails chakra." suggests Danzo.

"No, she is too young to be able to use nine tails chakra. She should at least be at genin level before we teach her how to access its chakra and we can't just separate them they might protest it." says hiruzen.

"All right we will separate them for 1 year by having the boy being adopted and then they can meet at the Academy when they both join next year. The girl can be manipulated to not put up a struggle by suggesting that his brother will not be associated with her anymore and not suffer due to her." Sakumo says with a grim face.

Danzo gets a calculative look in his eye "There might be a problem with that. The boy is very protective of her and he may not agree to it. We should have the girl to be adopted then we can free her of his brother's influence and slowly condition her to be more influenced by us." 'After that I can gain the loyalty of the boy by providing him Shinobi training as a precaution to control her.'

Sakumo sits back in his chair contemplating "All right we will proceed with your plan Danzo."

Sarutobi has a weary look on his face and turns to leave " I still don't think you should separate them."

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Author's Note: In this fic, Sakumo supports some objectives of Danzo. He is not as opposed to him as sarutobi is to Danzo.