Year 28 since the creation of Konoha
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In the middle of a large room, where there were several beds in 2 columns with small children sleeping, in the corner of the room there was a child lying on his back, meditating while he had a leaf on his forehead and several on both arms.
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While the other children his age slept, our protagonist concentrated on improving his chakra control.
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Our protagonist was named Uchiha Natsuo, a 4-year-old boy who a few months ago recovered the memories of his first life on earth and was frightened by the dangers that were coming.
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And not only because of the second world war that would occur in 7 years or the third shortly after, but there was also the Kuybi attack, the massacre of the Uchiha clan, the invasion of Konoha by the Sand Village and the Sound Village during the Chunin Exam led by Orochimaru, and the destruction of the village at the hands of Nagato, but there was also Madara's plan at the hands of Obito to capture and combine the tailed beasts and destroy the world, causing the fourth world war and the villages to unite in an alliance.
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Even if he becomes an ordinary villager to avoid participating in the upcoming world wars, Natsuo would not be safe due to the Kyubi's attack and the massacre of the Uchiha clan at the hands of Itachi, Obito, and Danzo's Root waiting outside the Uchiha clan area.
Even if he miraculously survived the clan massacre, there was still Danzo who wanted the extermination of the Uchiha and to obtain as many Sharingan as possible in the process.
Orochimaru was not far behind with his obsession with the Sharingan and wanting to possess its body.
There was also the attack during the Chunin exams, the destruction of the village at the hands of Nagato, and the fourth world war, a war that, if lost, will destroy the world, as will Madara and Obito.
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Thinking about Madara and Obito's plan, Natsuo felt like beating them to a pulp and screaming in frustration.
Because of these idiots deceived by Black Zetsu, many had suffered and died in the process of their plans.
To trap everyone in a permanent illusion where there will be no wars and everyone will be happy?
IT WAS STUPID!
Even if it was seemingly a good cause, besides taking away the freedom of choice from most of the world, they were ignoring the fact that humans had an average life expectancy of 70 to 100 years, and after a century it was quite possible that the entire human race would have perished without having had any descendants.
Even if the divine tree could help all people live longer, there were still external threats.
The Otsutsuki clan was the one that would appear soonest because they lost contact for more than 1000 years with Kaguya and Isshiki, with 3 members of the Otsutsuki clan arriving in approximately 50 years from now.
Even if they defeat those 3 members of the Otsutsuki clan and Isshiki Otsutsuki, the rest of the Otsutsuki clan will still remain.
Furthermore, Natsuo did not believe that the Otsutsuki were the only race with the ability to travel through space, so other races were also a danger.
The summoning animals were proof that animals could become intelligent and progress by absorbing natural energy, so it was very possible that throughout the universe there were several races of this type of intelligent animal.
Not to mention the Gods and Demons.
Jasshin was a god worshipped by a cult, and these cultists had a kind of semi-immortality by offering sacrifices to their god.
In the land of demons, there was a demon trapped by a Miko, and from then on, subsequent Miko had the duty to seal that demon if it escaped again.
The various temples around the world and myths and legends mention several gods.
It is very possible that these gods existed in ancient times and that they were very possibly defeated by Isshiki when he came to this world with Kaguya to plant the seed of the divine tree.
While it may seem that these gods do not surpass the level of Six Paths, it does not mean that they are weak or do not have strange means to kill someone.
Furthermore, in the vastness of the universe there must be more powerful Gods and Demons.
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Breathing deeply, Natsuo didn't think about the matter anymore and continued practicing his chakra control.
At one of the tenketsu points on his forehead and at several on his arm, Natsuo released a very small amount of chakra, enough to keep the leaves stuck to his skin.
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As a child born to non-ninja parents, Natsuo was at a disadvantage compared to others in the Uchiha clan and the rest of the village clans, so he must take advantage of every moment to train.
His parents were civilians who worked in one of the clan's several businesses and who died when the caravan they were traveling in was attacked by roaming ninjas.
Having no immediate family to care for him, he was placed in an orphanage several months ago, shortly before regaining his memories of his first life.
It was lucky for Natsuo to have been born into a clan; otherwise, he would have had to wait until he was 6 years old to enter the academy, and only after the teachers decided he was ready would they help him unlock his chakra.
Of course, one can unlock their chakra on their own with some training, but it would raise eyebrows if an orphan did so at a young age without anyone to teach them.
Having been born into a clan, in addition to being cared for while they were young, Uchiha children received some ninja guidance and if they showed talent they were recruited to be nurtured by the clan.
At an early age, the children recruited by the clan were defined by the amount of chakra they possessed, as examined by an Uchiha with the Sharingan active.
Unfortunately for Natsuo, he didn't make the cut a few months ago when an older Uchiha arrived at the orphanage to help the children unlock their chakras and only took 1 because he had a larger amount of chakra.
Of course, before leaving, the elder Uchiha told them not to lose hope and that they could be considered by the clan if they could perform the Fireball Jutsu before the age of 6.
The Fireball Jutsu was an initiation rite for the Uchiha clan, so it was a tradition and a way to test the talent of the clan's children.
Being a large clan, the Uchiha clan had its own library, where everyone could enter and learn from it if they wanted.
Of course, there was information and jutsus that only ninjas with sufficient merit could learn.
Natsuo's parents were from the Uchiha clan, but they were civilians who only had one Genin shinobi in their families 3 generations ago.
Natsuo had an average amount of chakra for a civilian, so he would not be taken into account compared to other children who had more chakra due to having Shinobi ancestry.
But Natsuo wasn't going to complain about that.
I was already very lucky to have food, clothes, and a bed to sleep in.
Natsuo wasn't going to give up just because he had less chakra than the other children in his clan. He would use every moment to train hard and smart.
After all, he had experiences from another life and ideas from other worlds.
Inhale* Exhale*
Concentrated, he circulated his chakra throughout his chakra pathway system while keeping all the leaves stuck to his skin.
By creating chakra in their Dantian and circulating it through their chakra pathway system, a shinobi could increase their chakra amount.
Chakra was a mixture of physical and mental energy, so a ninja had to train both his body and his mind.
In addition to improving your chakra control, circulating your chakra could generate more and increase your chakra amount, however small it may be.
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The improvement was minuscule, but Natsuo wasn't going to give up. Every night he did the same thing, and little by little, he increased his chakra reserves.
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But what was improving rapidly was his chakra control.
Starting with one sheet and spending only 1 minute sticking it to his forehead, he now had 11 sheets stuck to his body for 10 minutes.
One on her forehead and 5 on each arm.
Having little chakra and being unable to train his body intensely due to his young age, the only thing Natsuo could do now was improve his chakra control.
And so far, Natsuo could say he was doing a good job.
After all, the other children his age could only stick a sheet of paper on their foreheads.