Naruto belongs to Mashashi Kishimoto.
BEFORE CANON 1
When I got my cheats from God, I wasn't that happy. Knowing that I am going to reincarnate as a side charactor in a shonen manga was not a good news. And not knowing which character it is going to be is a bad news. And the cheats I got after rotating the fortune wheel did not that promising either.
Due to my good karma I got seven chances.
Accelerated learning and comprehension.
Natural high affinity of fuinjutsu.
High IQ (250-300).
Natural high affinity towards Naginata.
Accelerated stamina recovery.
Natural high affinity towards weapon smithing.
Natural resistance to genjutsu.
Well atleast I knew where I was going to go. But the world of Ninja didn't appeal me that much either. But it wasn't like l can choose for myself.
And that's how I got reincarnated as Tenten. Atleast even if I follow canon, I would be able to survive.
So I started my journey as a side charactor. The first four years of my life was not worth mentioning. As an orphan, I lived in the west side orphanage of the village. This orphanage was close to industrial area of the leaf Village. But the next three years were full of productive activities, some happy and some sad moments. As an orphan, the orphanage only allowed me to go out after my fourth birthday. And after a few visits towards the park I got bored. That's when I came across Hajime Hugarashi. A weapon smith and an ex-shinobi. The man was in his sixties. But he was quite skilled. It started with just me watching him work near the fire dome quitely. As time went by, I started helping him. And not even a year after, he adopted me. I don't know why but it was the best moment in my life. For next year, I learnt many things. From unlocking my chakra, to calligraphy. And not to mention made my first kunai knife. The proud approving look on his face was the best thing for me in that year. On my seventh birthday, he took me to the famous ramen shop in anime verse ichiraku ramen. Although I didn't saw Naruto the first time, but I got his looks on my third visit. He was a innocent,cute and lonely kid. Incredibly lonely if I have to say. So on the weekends, practicing my bowstaff with Naruto, added to my list.
By the time I went to academy, grandpa Hugarashi has already taught me chakra control, calligraphy and fighting with bowstaff.
Even with my insane stamina, the old man was completely ruthless when it comes to training. And my cheats didn't help either. But due to my learning speed and adaptability, the old man didn't went easy on me. But thanks to that, I came second in the academy entrance exam. Ofcourse I held back. The fate of the prodigies in hidden leaf is worst. And I didn't want the eyes of Danzo or the hokage on me. First I was afraid that training with Naruto might get their eyes on me. But thankfully it didn't happen. And it was probably because I only met him once a week and that's only for an hour to train. I was always busy. And after I went to academy, I barely got any free time. But one day, on one of my visits to the ramen shop, I met the hokage Hiruzen Sarutobi. Although he greeted and acknowledged me as one of the Naruto's friends, he didn't show much interest in me. And I was really thankful for that.
An year after my entrance to the shinobi academy, the health of old man Hugarashi started declining. By that time I had already made my own storage scrolls and exploding tags. But due to my high genin level reserves, I wasn't able to make more that thirty exploding tags or ten regular storage scrolls. It was impressive for someone eight years old. But due to not having the permission, I wasn't able to sell them.
Three months after my eighth birthday, old man Hugarashi passed away. It was the saddest moment in my life so far. After the funeral, I was addressed by hokage. All the inheritance of the old man was mine. I didn't want to go back to orphanage. But due to my request, the hokage agreed to manage the property till I became a genin. I distanced myself from Naruto for a while. And focused on my training. But soon after he Naruto helped me getting over with the death of the old man. I made friends with Lee as well. So we three trained together. I helped Naruto in buying his grocery and in exchange he helped me by being my personal moving target for practice. Due to that, this Naruto is definitely a little taller and muscular. Lee was a good training partner too. But he didn't have Naruto's strength or stamina to keep up. An year passed away.
At the age of nine, I took early graduation exam and the seal licence test both of which I passed. I requested hokage to put me in the genin corps as I still didn't feel ready. He agreed as there were an odd number of students. But not long after, Maito guy approached me and took me as an official apprentice.
Two years went like breeze. Many things happened. Guy took Lee as an unofficial apprentice. I made my own naginata with chakra conducting metal and inscribed it different fuinjutsu formula. It has mainly two functions. The blade won't break due to the hardening function. And it was meant to control remotely with my braceletes with the help of gravity manipulation seal. Thanks to this artifact, I got recognised as a seal master. But that's not all. Many of my other seals became popular as well. Like the remote detonation seal or chakra reserve seal. Not to mention I completed two of my secret projects. The Re: seal and the shamble seal.
The Re: seal is a time type seal that allowed me to rewind my body status for ten minutes max. It not only restore my wounds but also recover my chakra. It was in my forehead as a small spade symbol.
The Shamble seal is a space time seal. But it is like substitution jutsu. It needed me to mark an object or person with the seal. On the plus side, it has no limitations in range and instantaneous. Not to mention I can switch places of two marked objects in themselves as well.
I was planning to keep these two seals secret atleast till chunin exams. But one b turned a rank mission forced me to reveal shamble.
...
This was Part one pre canon.
There will be a second part.