Chapter 3- "Do you know about the Will of Fire?"

"The Three-body Jutsu is the most basic Ninjutsu and is also the lowest consumption ninjutsu to use. In the practice field, we can use powerful ninjutsu without worrying about the consumption of chakra, but this is different once your on the battlefield."

"Saving even a little chakra, could perhaps be the thing that could save your life."-At the beginning of his class, Keiichi talked about understanding the three most basic skills.

Some come from his original body, but more of the knowledge came directly from the 'Three-Body Technique' knowledge provided by the system.

Every one of his students listened carefully.

Now is not the same as the past Konoha once was. The successive wars have made Konoha somewhat green and yellow today. More and more children graduate early to participate in the war, such as Kakashi and Gai.

Many of this mixed class may join the war this year. The guidance of an experienced ninja from the battlefield is very useful to them.

At this moment, even the weakest member of the class, Obito, did not even dare to whisper.

"Teacher, how can I use less Chakra?"

"Sensei…"

Now that Keiichi's lecture finished it was time for questioning.

A group of people raised their hands enthusiastically.

Keiichi answered patiently one by one.

When the bell rang. It was time to for them to get out as class has now ended!

"Okay, students, you can practice on your own once you leave. If you have any questions, you can come to me after class or ask questions in the next class. If you are all right, you can disband."-Keiichi breathed a sigh of relief.

This was his first lesson teaching in the ninja world, and it went quite perfect. Although first impressions were intimidating, for him teaching later would not be too difficult. But now it seems that his lecture notes that where organised before the class have become superfluous.

In a real class, it's impossible to perfectly follow a script.

These students are not other people. Many of them are geniuses and people who have left their names behind as legends. They will all have their own ideas.

"By the way, Obito, my first class tomorrow is in the morning. If you're late, you will run 200 laps around the playground."

"What?"

Before leaving Keiichi gave Obito a warning after all why was he still here? What if he was late again tomorrow as he was today?

"Everyone, I will see you again tomorrow."-As soon as Keiichi finished speaking, he immediately left.

Back in the office, he immediately glanced at the system.

At the end of class, he heard a prompt from the system, but he didn't listen carefully.

[Complete your first class teaching]

[Evaluation: Excellent]

[Bonus Ninjutsu - Water Release: Water Dragon Bullet Technique]

Water dragon bullet?

One of the famous Jutsu's of the second Hokage?

Keiichi was startled for a moment. But after receiving the check, he knew that he was blaming the system by mistake.

This was only a simplified version of the second Hokage's Jutsu, with only four seals, besides the gain from the awakening of the blood of the Senju clan is still there. This ninjutsu reward is not that bad.

"I have to go out somewhere and try it."-Keiichi secretly said in his heart.

From the previous activation of the system awakening of his bloodline, he has not yet tried his power of water-release ninjutsu, and he has no accurate assessment of his current strength.

This can't go on.

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On the outskirts of Konoha.

After class, Keiichi came here and found the riverside area.

His next move was to use *Shadow clone Jutsu.*

A clone identical to him appeared.

"Time is precious, you will go and practice taijutsu moves, while I will try the power of ninjutsu."

"…"

'Dam you, why don't you change our jobs?'-The Shadow clone wanted to complain very much, with a speechless expression on his face.

But who made it a clone?

'No way.'-He had no choice but to get up and find a place in the woods to start exercising physique moves. If he could practice physique moves such as Konoha Whirlwind and Shadow Dance Leaf, he would make a profit.

Keiichi checked his current level of his chakra. It turned out that he still had a lot left even after summoning a shadow clone.

"This chakra volume, at least three shadow clones could be working at the same time won't be a problem. Though it can't be compared with Naruto, it is much more than what the adult Kakashi could handle."-Keiichi was quite satisfied.

Naruto is not only of Uzumaki blood, but also nine-tailed chakra and asura chakra, which are completely incomparable.

As he looked around. Keiichi found an open space and quickly made a seal...

*Water Release: Water Dragon Bullet Technique*

The next moment, water that was flowing down a nearby river turned into a dragon, and it rose to the sky. With a roar, it smashed a big hole into the ground by becoming a high-speed projectile in the shape of a dragon.

'So Powerful!'

Although moving away from the river would make it weaker, the difference will not be too large, at most the consumption will increase.

"In this technique, there are ways to perform both offence and defence."-Keiichi secretly said in his head.

With a water wall formed as well as the water dragon bullet, and the water's turbulent waves. He can't find any major flaws in his current abilities.

'Certainly.'

Though his skills may be limited to Chunin and below Jōnin levels.

But compared with the ninjas above the elite Jōnin level, His power does seem too weak. But he just has to take his time, after all, there is a system, and the days are still long.

Keiichi got back up, ready to go back to have a good meal.

As for the shadow clone...Keiichi will let him continue to exercise over there.

Just as Keiichi took a step, he suddenly noticed a wave of chakra, and he turned his head to look over at his right.

"Who is there?"

"Teacher, it's just me."

Behind the tree, a figure slowly walked out. No need to look at him. Just based on his voice, Keiichi knew who the other party was.

Uchiha Shisui.

"Shisui, why were you looking for me your teacher?"

"Yes, I have some doubts. I hope you talk to you about teacher."-Shisui immediately bowed.

Seeing that Keiichi was very gentle, without the slightest impatience, he came over with a hesitant expression on his face.

"Tell me what troubles you then."

"Teacher, I originally wanted to graduate early this year, but after fighting against you, I'm a little worried... Will my early graduation cause trouble to my teammates?"-Shisui said his problem.

Keiichi was stunned for a moment, then he wanted to laugh a little.

'It seemed that the loss had hit him hard.'-Keiichi thought for a while, and then said: "With your strength, you are not weak, and you won't be a drag on the battlefield, but if the battlefield is not corrupt, I don't recommend you graduate so early."

"Teacher please give your pointers then!"-Shisui bowed solemnly.

"Sit down, let's chat as friends."-As soon as Keiichi sat down, he pointed to the grass and motioned for Shisui to sit down too.

Shisui does as Keiichi asks.

"Do you know the original intention of the first and second Hokages was when they created the ninja school?"

Shisui shook his head.

"Do you know of 'the will of fire'?"

"Where the leaves are flying, the fire will continue to grow, and the fire will illuminate the village and make the new trees germinate."

Shisui nodded this time.

It has been taught by the Third Hokage, and it must be learned in the thought class.

"One of the implications is that children are the future of Konoha. The first and second Hokages' advocated building a ninja school to prevent children fighting before they had trained in order to give them a chance to live."-Keiichi explained.

His grandmother belonged to a family from the Senju clan, so this history was widely circulated, but they were never held secrets, to begin with, so there is no need to worry about being seen by someone who likes to peek.

Shisui is thoughtful.

"The battlefield will make people grow up in advance, but you are only five years old. If you can study for another year or two, your strength and thinking will become even more clear and mature, and it will not be too late to go to the battlefield by then."-Keiichi said.

How many Chunin ninjas are there on the battlefield?

No, what is lacking there are Chunin with the Sharingan.

The Third Hokage allowed the village to let their children go to the battlefield in advance, in essence, they just hope that the childen will grow up quickly under the pressure of war.

"But…"-Shisui stopped talking.

He thought about it, the First and Second Hokage in the village seemed to have said similar things, but why are so many children sent to the battlefield ahead of schedule?

Like Kakashi. Shisui's senior who had graduated at the age of five, and now it is said that he has become a chunin with outstanding military exploits.

"War will make people grow rapidly, but correspondingly, they will also lose a lot of things. Running before you learn to walk is not necessarily good. You can fall hard."-Keiichi couldn't help recalling the relevant episodes of Kakashi in his mind.

The predecessor/original body used to be on the same team as Kakashi. That rascal. It can only be said that Kakashi's temper is stinky, and at this stage, most people don't like him.

"I understand, Thank you, teacher."