Physical training couldn't be too intense, so Uchiha Kiyoshi still had plenty of time left. He spent one hour practicing the throwing of ninja tools.
During the special training, he had trained with kunai throwing. However, Uchiha Ryu had also taught him how to throw shuriken and Senbon, so Uchiha Kiyoshi picked them up without much trouble.
Personally, Uchiha Kiyoshi preferred kunai, which he had used for longer. Shuriken felt awkward in his hand, while Senbon were concealed and fast, so he didn't dislike them.
Still, when it came to Senbon, Uchiha Kiyoshi felt that it would be truly satisfying to send an entire barrage of them flying out. Mm! It was decided. When he had time, he would see whether he could develop a Ninjutsu like that.
Come to think of it, hadn't there been a Ninjutsu like that in the original story?
"Forget it. If I can't figure it out, I won't think about it."
Uchiha Kiyoshi had also noticed that, as time passed, the details of the original story in his memory had become increasingly vague. But that didn't matter. As long as he remembered the main plot's overall direction, it would be enough.
And through that train of thought, Uchiha Kiyoshi thought of something else.
Could ninja tools created by Ninjutsu be used? They probably could, right?
Even if they couldn't be preserved, as long as I cast the Ninjutsu fast enough, I won't need to prepare ninja tools.
Wouldn't that save me a lot of money?
Saving money was one thing, but it would consume Chakra too. Uchiha Kiyoshi was still far from being able to spend Chakra as freely as he pleased.
After returning home from the training ground, Uchiha Kiyoshi began thinking about Chakra control training.
Having read the original story, Uchiha Kiyoshi naturally knew how important Chakra control was. It could not only conserve Chakra, but also increase the power of Ninjutsu. Furthermore, excellent Chakra control was an essential skill for becoming an outstanding medical ninja.
It seemed that Sealing Jutsu also had requirements for one's Chakra control.
In any case, the final conclusion was that Chakra control was important, and Uchiha Kiyoshi needed to begin training in that area.
Thanks to his powerful soul, Uchiha Kiyoshi's Chakra control was already quite good. But it still wasn't enough; it had not even reached the level needed to practice Medical Ninjutsu.
Tree Climbing and Water Walking were certainly useful forms of training, but Uchiha Kiyoshi's Chakra situation didn't allow for them, so he could only think of another method.
With all the experience from reading novels in his past life... no, reading literature, Uchiha Kiyoshi truly wasn't worried about being unable to find a way to train Chakra control.
Very quickly, Uchiha Kiyoshi found a method for training Chakra control. Uh, it came from some high-martial-arts novel—the Qi-Blood Splitting Method.
In the Ninja World, Uchiha Kiyoshi called it the Chakra Splitting Method.
As the name suggested, it involved controlling Chakra and continuously splitting and recombining it until he reached his limit, then constantly breaking through that limit. As the smallest amount of Chakra he could control decreased, Uchiha Kiyoshi's Chakra control would improve accordingly.
Most importantly, compared to Tree Climbing and Water Walking training, which required large amounts of Chakra, the Chakra Splitting Method consumed far less Chakra. After all, the less Chakra he controlled, the better the results, and the less was lost during the process. With the smallest Chakra sphere Uchiha Kiyoshi could currently control being about one-twentieth the size of a sesame seed, the consumption was already extremely low.
(A sesame-seed-sized amount of Chakra was roughly 1 Ka. In other words, the smallest amount of Chakra Uchiha Kiyoshi could control was around 0.05 Ka.)
Having come up with the idea, Uchiha Kiyoshi began trying it.
Although the less Chakra one controlled, the better the training effect, there was no need to always practice with the absolute minimum. After all, maintaining intense concentration for a long time was exhausting.
To put it this way, if someone could control a minimum of 0.1 Ka of Chakra, they didn't necessarily have to try controlling 0.1 Ka during practice. They could control around 0.5 Ka or even 1 Ka instead, training through various complex operations—for example, controlling several masses of Chakra in irregular movements. As the operations became more difficult, their Chakra control would improve.
Uchiha Kiyoshi tried controlling around 0.5 Ka of Chakra.
Although Uchiha Kiyoshi could control as little as 0.05 Ka at his limit, that was under extreme conditions, with his mind highly focused, and only involved controlling its size. As for making such a tiny amount of Chakra move, Uchiha Kiyoshi still couldn't do that.
A 0.5 Ka Chakra sphere was already difficult enough for Uchiha Kiyoshi to control. He could only make that Chakra perform some basic movements, making it perfect for practice.
First, he controlled a 0.5 Ka Chakra sphere in a circular motion, then sped it up and slowed it down.
After a day of training, Uchiha Kiyoshi could clearly feel his Chakra control improving. However, the initial results were naturally the best. Future gains would become smaller and smaller, and Uchiha Kiyoshi was mentally prepared for that.
Chakra glowed blue as it moved continuously in Uchiha Kiyoshi's hand—sometimes in straight lines, sometimes in circles, its speed alternately fast and slow.
As he trained, Uchiha Kiyoshi considered how to improve the method. After all, he could feel that his progress would inevitably slow as he continued practicing. At that point, he could only keep controlling ever-smaller amounts of Chakra.
But that was difficult too. A 0.5 Ka Chakra sphere, half the size of a sesame seed, was already hard to see. It was only thanks to Chakra's blue glow; otherwise, after it spun around a few times, where would the Chakra sphere even be?
That would be awkward.
Once he had more Chakra in the future, he could naturally choose to practice with smaller amounts all the time. But Uchiha Kiyoshi had not reached that stage yet, so for now, he could only think of another way.
The minimum amount of Chakra one could control was actually always changing. As one's Chakra increased, the minimum amount one could directly control also increased. With Uchiha Kiyoshi's current control level, once his Chakra grew to around 100 Ka, the minimum amount of Chakra he could control might become 1 Ka.
That was right. This growth wasn't proportional. Though it wasn't exponential either, as Chakra increased, if one neglected Chakra control training, the proportion of Chakra one could control would gradually decrease.
Once he had 100 Ka of Chakra, Uchiha Kiyoshi could naturally try gradually reducing his practice amount from 5 Ka to 0.5 Ka. In the future, when he had several thousand Ka of Chakra, he could even gradually reduce from 10 Ka to 1 Ka.
Unfortunately, people had to face reality. Uchiha Kiyoshi currently had only around 3.6 Ka of Chakra, so he could only improve by training his control over Chakra spheres smaller than 1 Ka. Of those, 0.5 Ka produced the best results.
But after a full day of training, keeping his eyes fixed on a sesame-seed-sized Chakra sphere was still exhausting.
Therefore, it was necessary to improve the method for the time being.
This time, Uchiha Kiyoshi did not look for inspiration in other novels. Instead, he recalled the Naruto fanfictions he had read to see whether he could gain anything from them.
"I remember that in a few fanfictions, the protagonists used Chakra to control little balls. With the ball's weight, Chakra control would become more difficult, like weighted training. That should be pretty effective, right? And I could also appropriately increase the number of balls."
Uchiha Kiyoshi muttered to himself, imagining himself controlling small metal balls, or even five or six of them in the future, making them move nimbly in his hand. Heh, wasn't that just playing with walnuts?
Or perhaps it would be more like twirling a pen between his fingers?
Not bad, not bad. Both were good ideas. He would write them down and give them a try.
Uchiha Kiyoshi took out a notebook and wrote down his thoughts.
The palest ink was better than the best memory. Uchiha Kiyoshi had too many things to deal with and might easily forget, so it was better to write them down.
A few days later, Uchiha Kiyoshi's training had all entered a steady routine.
Ninja Academy, first-year Class 1.
"Today, we will continue learning Chakra extraction.
We have discussed this before: Chakra is formed by combining Physical Energy and Spiritual Energy. Therefore, the first thing we must do is sense Physical Energy and Spiritual Energy."
Although Uemura Naoki lectured passionately at the front, more than half the students below did not even look up to listen seriously. These students were from ninja clans and had long since extracted Chakra. Moreover, Uemura Naoki's lesson content had already been covered during their clans' special training, so it didn't really matter whether they listened.
The remaining students who listened attentively were all commoners. Even if there were ninja at home to help them and they had already completed Chakra extraction, some details were still not explained as clearly as by a professional like Uemura Naoki, so they continued listening seriously.
Only around five or six students had truly encountered Chakra extraction methods only after entering the Ninja Academy. With no ninja in their families to help them, they had yet to extract Chakra and could rely only on themselves.
Still, they deserved to be students who had entered Class 1. Their talent for Chakra was quite good, though no one knew how the academy had tested that talent in the first place. They could now sense Physical Energy, and they were only a little short of sensing Spiritual Energy as well. As Uemura Naoki explained, they occasionally nodded and took notes.
Chakra extraction was the key course for the entire first year of the Ninja Academy. Since the school year began, all four first-year classes except Class 2 that contained commoner students had begun teaching it. For the next half year, the lessons would continue until every student had successfully extracted Chakra. Of course, there were only six months for that. After six months, there were other classes to teach; they couldn't keep waiting for a few individual students.
Meanwhile, Nawaki naturally enjoyed the rare and wonderful time when he did not have to listen in class. He looked left and right, apparently playing with something or other.
There was nothing he could do. Uchiha Kiyoshi was reading, and since class was in session, Uchiha Kiyoshi would not pay attention to him. So Nawaki could only entertain himself.
Uchiha Kiyoshi was reading Sealing Jutsu Basics in his hands. Beneath the desk, in his right hand where no one could see, a soybean-sized metal ball constantly moved across his palm and occasionally darted between his fingertips.
Other than the ball's movements being so smooth, a closer look would reveal that the ball never touched Uchiha Kiyoshi's right hand throughout the entire process. In other words, every movement of the ball was produced by Uchiha Kiyoshi manipulating it with Chakra!
The ball itself was not particularly heavy, but compared to directly controlling Chakra, it still created considerable resistance for Uchiha Kiyoshi.
Uchiha Kiyoshi had specially commissioned this ball a few days ago. It came with four other balls, and the five of them had cost him a total of thirty thousand ryo, which pained him terribly.
Unfortunately, after visiting several places, this had already been the cheapest option. Such tiny metal balls were very difficult to make, and some shops with insufficient skill had flatly said they could not make them at all. Moreover, to allow Chakra to adhere to the balls more easily and control their movement, they had been mixed with some Chakra Metal powder, driving the price up even further.
Still, Uchiha Kiyoshi could only grit his teeth and buy them. The facts proved that his decision had been very wise. With the little ball, his training efficiency had greatly increased over the past few days. Whenever he had free time, he could also keep a ball in his hand and train at any moment.
Just like during every class, Uchiha Kiyoshi would slip his hand under the desk, then read while conducting this training. Of course, he was now using slightly more Chakra—an entire 0.8 Ka. Otherwise, merely training Chakra control would require his full concentration, so how could he still read?
Besides his daily continuous training, before sleeping, Uchiha Kiyoshi would spend ten or twenty minutes on extreme training, constantly splitting Chakra and trying to separate out a smaller Chakra mass that he could maintain.
Once he finished that training, Uchiha Kiyoshi did not need any preparation at all. He would immediately fall asleep, and the results were quite good.
(Here's a brief note about updates.
School has started, so there may be fewer updates.
However, I'll do my best to keep going and see whether I can maintain ten thousand characters per day.
From now on, there will be one update after midnight, then another during the day. The morning or afternoon timing is uncertain, and there should be another update around eight or nine at night.
Mm, that's it. If I have more time during the day, I may add a second daytime update depending on the circumstances.
Thank you all for your support.)
Lastly, let me quietly add one more thing: please recommend it, and please vote with monthly tickets!!!
Before you continue