Naruto ninja system

"Where am I" those where the first words that left his mouth as he woke up. His body seems to be in pain but there's no sign of injury anywhere. He sit up to look at his scenary around him, the green grass, the tall trees and the clear blue sky and the entire environment were all familiar to him because he's at the leaf training grounds.

"But how did he I get here, I'm suppose to be dead at the hands of the oktusuki. So why the heck am I here." He wasn't just at the training grounds but he seems to also be back to the past because although it's the same, it also looked different from what he remembered.

The oktusuki invaded the world and were planning to suck all life from the shinobi world with the divine tree. The entire world was in great chaos because of the sudden war with the oktusuki clan. The entire five great nations and other smaller villages were destroyed as none had the power to resist them and him himself was a victim.

The fifth great ninja war is what people called it saw many people die, the hokage Naruto Uzumaki, Sasuke Uchiha and all the other kage were no match for the oktusuki and their destructive power and soon the entire shinobi world was gone as any form of resistance was smashed over by the oktusuki's and they were successful in growing the divine tree again and suck the life of the world to grow the chakra fruit.

But now he not only didn't die but it looks like he was reborn back to his younger self when he was still 12 and was still in the academy. "if I'm alive, does that means that everyone else is also alive?" That was the question going through his head but there is no way to confirm without walking around to look at his new surroundings because as far as he remembers, he was born right after the fourth great shinobi war and now that he was given a new life, he made a pledge to protect the shinobi world from destruction this time no matter what price he has to pay.

He got up from the ground and walked out from the training grounds and when he got out and looking at the structures of the buildings he could really tell that he was in the past considering how old the buildings are and the most change that caught his attention was the great stone face's of the previous hokage. Instead of 7 like he remembered, it was now 4 which proves that he was really in the past.

As he was walking around, two shinobi dressed up in their leaf uniform and the hidden leaf band on their head stood in front of him.

"What are you doing walking around at this time of the day when you should be in class?" One of them as with a serious look on his face.

"umm!" before he could say anything, the two of them grabbed him on the arm and carry him to a building that he's already familiar with, It's the ninja academy.

In the class he was taken to, he could see lots of familiar faces like Naruto Sasuke and even the teacher in the class who was already the principal of the academy in the future Iruka Umino.

"Iruka, we found this kid wandering about when he should be in class so we brought him back for you"

"That's strange. I don't think I've ever seen him in this class before!" Iruka replied with a confused look.

Hiruko was thinking about what to do because indeed he hasn't attend the academy of this era before and if he doesn't do something then he will be in trouble.

"it's fine sensei I just started the academy and I'm still not familiar with the way around yet so I got lost! hahahaha!!!" he laughed after to hide the fact that he was lying. He do indeed know the way from his previous life but there's no way he could say that.

"Well thanks to you two for bringing him in for me you can go now" the two of them gave a quick bow before leaving.

"well newbie, why don't you introduce yourself to the class before we begin"

He turn and face the class and looking at everyone's face, he could see very well everyone one that died during the war sitting down and staring at him. He gave a little smile before introducing himself

"My name is Hiruko Tatsuya and I'll be a student of this class from now on" he said bowing his head.

"wow! what a cutie"

"do you really have to think that everyone's cute Ino-pig"

"what did you say you pink head freak"

"Alright you two quiet down if you don't want to spend the rest of the on detention. With that being said, Hiruko go up and sit on the empty sit close to Naruto."

Doing as he was told, he walked up to where Naruto was sitting and sat next to him. "Hey, nice to meet you Naruto"

"You too, my name is Naruto Uzumaki, if there's anything you need or don't understand, you can always come to me, I'm the best student of the class..."

"You mean the best at been stuck at the back of the class"

"what was that Sasuke, do you have a problem with me"

"hmnp" 'So this is how the two of them were before becoming best friends, i can't say I'm surprised either'

"Alright class since we have a new student today maybe we should just do a review on what we've taught so far today"

"what a draaaag!"
" Yeah why do we have to go back now! num num"

"It's alright sensei, you can continue from where you stop and I'm a fast learner too" Hiruko says after seeing that everyone is feeling a bit dissatisfied about reviewing most especially the lazy Shikamaru and the always eating Choji.

"Is that so, then can you at least do the clone jutsu"

"of course" Hiruko got up from his seat and started moving his hands together. After making the correct hand signs, "clone jutsu"
two copies of identical bodies appear at both sides of his body. "clone jutsu success"

"wow" the class was surprised to see someone perform the jutsu because most of them can't do it especially Naruto.

"well it looks like i don't have anything to worry about anything then Iruka the teacher say and tells him to dispell the jutsu which he does and after that, class for the day officially begun.