Even if Natsuo earned contributions by working as a medical ninja at the hospital, Eiichiro was confident that the Uchiha clan could provide a greater number of Ninjutsu or Genjutsu scrolls.
And being someone with Natsuo's skill, Eiichiro told him that in the future he would enjoy discounts on everything he wanted to buy from the clan.
Currently, the private sale of Ninjutsu scrolls is prohibited worldwide.
Only ninja villages sold Ninjutsu to their ninjas in exchange for money or contributions, and violating this law was punishable by death. This is something agreed upon by all countries and villages worldwide.
Of course, it was still possible to obtain Ninjutsu scrolls on the black market, but it was dangerous and unreliable. Only rogue ninjas dared to acquire Ninjutsu there because they had no other choice.
Furthermore, unlike civilian ninja, clan ninja had an advantage in this situation because they could acquire Ninjutsu scrolls through their clans. Villages allowed this for ninja clans in recognition of their strength and contributions to the village, with the sole condition that they could only give or sell Ninjutsu scrolls to their own members.
As an Uchiha, Natsuo could also obtain various Ninjutsu scrolls through the Uchiha clan, but he could only obtain low-level scrolls.
Only now that he has demonstrated his ability to save someone's life, has the Uchiha clan allowed him to obtain higher-level scrolls.
Looking at the list of Ninjutsu in front of him, with many A-rank techniques, Natsuo found some he wanted to learn, but he didn't show it on his face because he wanted to acquire several things besides Ninjutsu, and the Uchiha clan could get them for him.
Looking at Eiichiro, Natsuo stated his condition for going to war.
.
.
.
That's how Natsuo agreed to go to war.
Of course Kushina didn't like that and wanted to prevent his recruitment.
Unfortunately for her, Natsuo needed the things he asked Eichiro for.
Unlike several years ago, when he was still weak, Natsuo now had a bit more confidence in his current strength to escape if the situation demanded it. With six of the eight inner gates open and the Seven Heavens Breathing Technique at his disposal, he was confident that few in the world could stop him from fleeing.
And since he would only be acting as a medical ninja, it was unlikely that he would have to fight.
After spending almost 8 months in the hospital and seeing so many people die and many more left with lifelong scars or amputations, she had decided to stop hiding.
Of course, he had only demonstrated his medical skills and had no plans to show his battle strength anytime soon.
And not only because he didn't want to attract even more attention, but also because he lacked battle experience.
Even though he could increase his strength by opening 6 inner gates and using the breathing method of the 7 heavens, and was confident that he could defend himself against a Jonin, Natsuo was not arrogant enough to say that he could fight an elite Jonin.
Besides the difference in battle experience, Natsuo did not know any high-level Ninjutsu.
With the D-rank jutsu he could learn at the academy and the few C-rank ninjutsu he had learned in recent years after exchanging the contributions he earned at the hospital, Natsuo's ninjutsu ability was very poor.
It was good that Natsuo practiced transforming his chakra all these years. That way, it was easier for him to learn jutsus of the fire, wind, earth, and water elements.
With his current strength, he was confident he could escape, and that's what he would most likely do if he encountered a powerful enemy before increasing his Ninjutsu repertoire.
"Doesn't Natsuo look good in his vest, Kushina?" Mito asked.
Back in the present, Mito asked Kushina if she liked Natsuo's appearance in his chunin vest.
At this meal held at the Senju clan compound, Mito Uzumaki, Kushina, Minato, and Natsuo gathered to celebrate Natsuo's promotion to the Chunin rank.
After all, Natsuo's medical ninjutsu skill was sufficient for promotion, and since he was going to war he was able to request the promotion through Eiichiro, the leader of the Uchiha clan.
"It... It looks good," Kushina said, looking away.
While Kushina looked away nervously, Minato watched jealously and Natsuo continued eating, ignoring everything. Mito looked at the children in front of her and sighed, remembering the family she lost.
Remembering all the faces of her deceased relatives, Mito hoped they would watch over Tsunade from heaven.
After eating at the Senju compound, Natsuo spent a few more hours learning from Mito about different seals.
One of Natsuo's most important plans involved Fuinjutsu, and it was of vital importance now that he was going to war, so he hurried to finish it.
Asking about the various difficulties Mito encountered, Natsuo was satisfied before returning when night fell.
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Five weeks passed until Natsuo received the order to appear in a certain area outside the village and then go to the land of grass.
Having already packed all the things she would take, she said goodbye to the matron of the orphanage and the other children before leaving.
"Good luck, Natsuo!" shouted all the children and women who worked at the orphanage.
Watching Natsuo's back recede, the head matron smiled with pride, her eyes red.
When Natsuo graduated, it was time for him to move out, but he spoke with the matron about staying at the orphanage a little longer until he could find an apartment of his own. In the meantime, he would pay for his rent and food.
And now with Natsuo's new status in the village hospital and within the clan, the Uchiha clan had also offered him a house to move into in the center of the clan compound, but Natsuo again refused, saying that for now he wanted to continue living in the orphanage.
While the matron believed that Natsuo saw the orphanage as his home, a thought that was not wrong, that was not the most important reason why Natsuo was reluctant to move out of the orphanage.
The real reason for not moving out of the orphanage was that she hadn't found a place with enough privacy.
The apartments I could rent within the Uchiha compound were occupied by a large number of ninjas. If I wanted privacy, I would have to choose to live in the outer parts of the clan compound, but unfortunately, there were no apartments or houses available for rent, and I didn't have enough money to buy one.
Natsuo briefly considered moving out of the Uchiha compound and living in the village, but that was also a bad idea because there would always be the possibility that Root would appear at his doorstep any day.
Of course, there was also the fact that Kushina always reminded him to move into the Senju compound, so it would look bad if he moved somewhere else.
Near the end, he decided whether to move to the apartments that the Uchiha clan rented to their ninjas or accept Tsunade's invitation to move to the Senju compound and pause his experiments.
Of course, now that he's going to participate in the war as a medical ninja, all those plans have completely changed.
After several minutes of traveling above the rooftops and stopping for a moment at the village gate to register his departure, he headed towards the area where a good number of ninjas had gathered to head towards the war zone in the land of rain.
While counting about 500 ninjas, including some medical ninjas, Natsuo remembered the real reason why he agreed to go to war.
Laboratory machines.
The level of technology in this world is higher compared to what is normally seen in everyday life.
Specifically, the machines used in hospitals.
Thanks to chakra, much more is known about the body than would be known in this era, and certain machines have been invented as the years go by.
And although civilians still don't have equipment like televisions in their homes, hospitals have laboratories with specific machines to study diseases and poisons.
For the experiments Natsuo wanted to conduct, in addition to test subjects, advanced laboratory machines were essential.
But those machines were expensive and not easy to obtain.
To go to war, Natsuo asked Eiichiro for these laboratory machines and he agreed.
Through letters, Eiichiro will coordinate with him the delivery of these machines in storage scrolls during the next month.
Natsuo will be in the land of grass at that time, so Eiichiro will send someone to make the delivery.