Classroom Warm-Up

"Sasuke, what are you hiding for?" Cosmic Wave Shingen looked at his disciple hiding in the crowd with ill intent. "Weren't you having a good time in class? Come on, let your teacher admire your new work."

"Teacher, you can't do this." Uchiha Sasuke knew he couldn't escape, so he had to resort to his backer, "Grandma Sage said you can't criticize my handwriting."

It would have been better if this hadn't been brought up, because as soon as it was, Uchiha Shingen found it outrageous.

Two years ago, Uchiha Shingen, unable to bear the White Snake Sage's constant nagging, took Uchiha Sasuke to Ryūchi Cave again, making the White Snake Sage so happy that he almost lost his connection with the earth.

Just because Uchiha Sasuke wrote a calligraphy for it to wish it a happy birthday— Uchiha Shingen thought this was very lame. The White Snake Sage probably didn't even remember its own birthday. Uchiha Sasuke took the day he first entered Ryūchi Cave as the White Snake Sage's birthday.

Anyone else would have been beaten to death by the White Snake Sage Immortal.

At the very least, they would be devoured by a hundred snakes.

As a result, the White Snake Sage was overjoyed.

Because it was so happy, it didn't want Uchiha Sasuke to call it Sage anymore, feeling it was too distant, and insisted that he call it Sage Grandma.

This treatment is a complete distortion of the original character's persona.

"You think you're right for not paying attention in class?" Uchiha Shingen displayed the shameful side of an adult.

No matter what you say, I'll just say you don't study hard.

"Alright, I won't criticize you today. Go line up with your classmates."

"Oh..." Uchiha Sasuke and obediently went to line up.

Among the crowd, Rock Lee watched this scene with an envious expression.

At this moment, Rock Lee desperately craved recognition from others, but unfortunately, no one had ever recognized him.

Not to mention the attention from a top-tier Jonin like Uchiha Shingen.

At this moment, the students began to line up. Rock Lee silently walked into the crowd, found his place, and remained silent.

Even students at the Ninja Academy will spontaneously rank themselves at this stage.

Those with strong abilities and good interpersonal relationships will naturally get relatively better positions, and vice versa. It all depends on everyone's "ranking" in their hearts.

Uchiha Shingen did not interfere. After the students had all lined up, he stood up from the sofa.

Many of the students who had already lined up stared curiously at the chair.

"Hello everyone, my name is Uchiha Shingen. Before you enter the application phase, I will be your homeroom teacher."

"Wow!" the students exclaimed with delight.

The scenario where Sasuke and Naruto had no idea who Wu Wukai was, and only knew that he was a Jonin, like in the original timeline, would not happen to Uchiha Shingen.

Most of the students present had no concept of Jonin.

But it's okay, the parents know. They all know the importance of Uchiha Shingen, and they also know that Uchiha Shingen would choose people to give private lessons.

So the kids had already been warned by their parents—if they didn't pay attention in class, they'd get a spanking!

Of course, as parents in the new era, they also understand what makes children happy, so they told their own children—this teacher knows a lot of Ninjutsu, and each one is cooler than the last!

This is exactly what students care about most.

So this surprise was truly heartfelt.

"Seeing everyone so lively makes me feel relieved," Uchiha Shingen said with a smile. "So, for today's first lesson, I'll take you on an outdoor excursion."

Chapter Seven: Classroom Warm-up

Students are running on the playground.

This was Uchiha Shingen's request. Although the students didn't understand why running was the first activity of their extracurricular trip, they all obediently did as he asked.

Uchiha Shingen stood in the center of the field, observing the students' state.

As he instructed, the students were allowed to use Chakra to run.

Then he just watched from the side.

At first, the students ran comfortably because in previous lessons, the teacher required them not to use Chakra while running.

But soon, some students slowed down. However, Uchiha Shingen had made a promise to them that they had to keep running until he called their names. No matter how naughty the students were, they dared not disobey.

Otherwise, you'll get a beating when you get home.

Finally, Uchiha Shingen began calling out names.

The person whose name he called did not appear to be at his physical limit; on the contrary, he seemed to have plenty of energy left, though he showed signs of fatigue.

But when they heard Uchiha Shingen call their names, they all obediently broke away from the group and came to his side.

"You all wait here, but you must remember how you feel right now," Uchiha Shingen said only this, then continued to watch over the group.

Soon, more and more people were called out by name, and the number of people in the line continued to decrease.

About half an hour later, only eight people were still running.

Arranged from top to bottom according to their physical condition, they are: Naruto Uzumaki, Uchiha Sasuke, Neji Hyuga, Konohamaru Sarutobi, Uzumaki Clan Karin, Rock Lee, Rock Lee, and Inuzuka Kiba.

"Alright, you guys stop too, come over here." Uchiha Shingen clapped his hands.

He already knew everyone's physical condition.

As the eight people returned to the group, Uchiha Clan first had the students line up, and then said:

"Besides the eight people I finally stopped, did everyone else remember how you felt when you stopped?"

"Got it!" the students shouted in response.

"Hmm, very good. You are still children, and this is a time when your bodies are growing, so your physical strength will continue to increase, which means your Chakra will also increase. But that feeling you just had was the feeling that your Chakra had reached a safe level. You must remember this. Now you can ask questions."

"Teacher." It was Rock Lee who raised his hand. Although he was disappointed that his performance hadn't received any feedback from Uchiha Shingen, it didn't stop him from asking questions when he didn't understand. "What is the Chakra safety line?"

"It's the amount of Chakra you have left to ensure you can retreat on the battlefield," Uchiha Shingen said. "Although Chakra cannot be quantified due to individual differences, your body will react once you reach this limit. When this reaction occurs, you should make a choice: retreat or take a gamble."

"Teacher..." Rock Lee said anxiously, "What about us?"

"The physical strength of you few has already exceeded the level expected for your age, which is why none of you reached this limit just now," Uchiha Shingen said. "That's a good thing, because what I was talking about earlier refers to the things that people with normal physical strength should pay attention to."

He paused for a moment, then continued:

"As for you few, because of your excellent physical strength, you will have greater potential for future growth. Therefore, you need to pay more attention to the rhythm of the battle, reduce unnecessary consumption, extend your battle time, and effectively deplete the enemy's Chakra."

He clapped his hands to refocus everyone's attention.

"In short, you are ninjas, you rely on Chakra to kill enemies. Once you have the opportunity to go to the battlefield, Chakra is more important than anything else. Wasting Chakra is tantamount to courting death."

"Teacher, we can use Kunai too," someone said.

"On the surface, there seems to be no problem, but it's actually just self-comfort," Uchiha Shingen laughed, then he took out a Kunai and activated Earth Release: Earth Spear in his other hand.

To the students' astonishment, he stabbed Kunai into their palms, which were already activating Nintaijutsu.

His palm was unharmed, but the sharp edge of the Kunai had a gash.

"My demonstration may not be very representative, but you can see that whether you have Chakra or not makes a completely different difference to your defense. This is about defense; now you'll see about offense."

Discarding the broken Kunai, Uchiha Shingen took out two new ones and threw them out.

One was simply a physical throw, the other he used Wind Release.

The two Kunai produced completely different effects when used on the wooden dummies in the playground.

The ordinary Kunai merely pierced the wooden dummy's chest.

The Kunai of Wind Release, ripped a large hole in the wooden doll's chest and then plunged into a large tree behind it.

"Your bodies aren't even as tough as this wooden doll. Believe me, once your Chakra is exhausted and you're attacked with Chakra by an enemy, you won't be able to recover," Uchiha Shingen said.

"This is the second thing I'm going to teach you today. Don't look down on the Three Body Techniques and Taijutsu you're learning now. After you graduate from here, you'll be Genin. Taijutsu and the Three Body Techniques will keep you alive, but those advanced Ninjutsu that require a lot of Chakra might not be enough."

Bai looked somewhat dazed in the crowd.

Of all those present, he was the only one who had ever truly faced a battlefield.

On the night of the Yuki Clan's massacre, he witnessed the Fourth Mizukage Karatachi Yagura, in battle.

When Karatachi Yagura killed people, he mostly used Taijutsu to beat his rival ninjas to death, without using his monstrous strength; it was just simple, ordinary Taijutsu.

His opponent had no chance to use Ninjutsu.

Because their Taijutsu skills were far inferior to Karatachi Yagura's, they were killed in a single encounter.

"Teacher." Someone raised their hand.

Uchiha Shingen looked over and saw Sakura Haruno.

"What's the problem?"

"Teacher, Ninjutsu has powerful destructive force and can also be used for area attacks. If we only focus on Taijutsu, won't we be defeated before we can even touch the enemy?"

"Of course not," Uchiha Shingen said. "So-called powerful destructive force requires being able to use it and being willing to use it. When your Taijutsu skills far surpass your opponent's, he will be dead the moment he sees you."

Rock Lee's eyes lit up in the crowd.

Uchiha Shingen felt he should explain the meaning of Taijutsu to this little beast.

"Taijutsu is a fundamental skill for ninjas because it is efficient and practical. Taijutsu, which uses Chakra to enhance the body's defense and attack power, is called Nintaijutsu. For example, when I blocked the Kunai just now, I used Nintaijutsu."

He walked to the center of the playground, placing himself some distance away from the children.

"The representative Nintaijutsu of Hidden Leaf Village is the Gentle Fist of the Hyuga Clan. I don't know Gentle Fist, but I do know another style."

After saying that, he activated Lightning Release Chakra Mode.

A massive burst of lightning erupted from his body, and in an instant, the light and shrill cries of the lightning filled the students' ears and eyes.

Neji Hyuga unconsciously opened his Byakugan and was surprised to find that Uchiha Shingen was releasing Chakra in a manner similar to that of the Hyuga Clan.

But Uchiha Shingen quickly stopped using his Lightning Release Chakra and returned.

"What you just saw was the Kumogakure's Lightning Release Chakra Mode, which is considered a very advanced Nintaijutsu. It has its own merits compared to the Hyuga Clan's Gentle Fist, but..."

Seeing the dejected look on Rock Lee in the crowd, Uchiha Shingen continued:

"Taijutsu is not just about Nintaijutsu. Even if you don't know how to use Chakra flexibly, with sufficient training, you can still possess powerful Taijutsu that is no weaker than Gentle Fist and Lightning Release Chakra. Chakra is Chakra. There are flexible ways to use it, and there are also ways to play it if you are not flexible. When a person's Taijutsu can be trained to this level, no matter how many Ninjutsu your enemy knows, it won't be of much significance."

He made a fist-raising gesture and laughed:

"It's all about one punch anyway. If one punch isn't enough, then throw another."

Honestly, if he were to fight someone who had activated the Formation of Eight Gates, regardless of whether the opponent had cultivated their physique to the monstrous level of Might Guy from the original Fourth Shinobi World War, he would first use the Flying Thunder God Technique to distance himself from them.

Why bother fighting? Wouldn't it be better to just wait for the enemy to die?

"Teacher!" Rock Lee suddenly exclaimed loudly, "So, even without any Ninjutsu, one can become a great ninja just through Taijutsu!?"

After saying this, he looked at Uchiha Shingen with great nervousness and trepidation under the strange gazes of everyone.

Rock Lee has always believed this and has worked hard to achieve it, but he hopes to hear affirmation from the powerful ninja in front of him.

"It really works." Uchiha Shingen nodded, answering immediately without keeping anyone in suspense.

"Huh!?" Most of the students exclaimed in disbelief.

This is completely contrary to their values.

"Such ninjas are not many, but they are not few either. The Nintaijutsu I just used came from the Raikage of Kumogakure. Hidden Leaf Village also had a hero who, with Taijutsu Formation of Eight Gates, single-handedly crippled the First Generation Seven Ninja Swordsmen of the Mist. They are all figures who stand at the pinnacle of the Ninja World."

Leaving aside the fact that everyone was completely bewildered, Rock Lee clenched his fists.

The teacher didn't question him; instead, she affirmed him without hesitation!

"Rock Lee, I've seen your file." Uchiha Shingen looked at him. "I understand your thoughts very well, so I can tell you that your ideas are not wrong, but whether they can be realized depends on yourself. After you graduate, I will recommend Lord Hokage to the Might Guy to be your mentor. He is the son of the hero I just mentioned, a Jonin who has reached the pinnacle of Taijutsu."

Actually, Might Guy isn't that exaggerated yet, but Uchiha Shingen said that he had read the manga and said that he had reached the top.

Might Guy's current strength is probably about the same as Might Duy's.

"Alright, that's enough for the warm-up." Uchiha Shingen said to everyone, "I told you today is an extracurricular activity, right? To give you all a clearer understanding of your future, now everyone come with me to Hidden Leaf Prison."

The students were taken aback.

Why go to prison? Isn't that a place for bad people?

"Don't just stand there, Bai, you lead the team, make sure everyone follows."

"Yes, teacher."