Immortality begins with the ninjas of Konoha

The Uchiha clan is famous for its shuriken and fire-style techniques, which has led many young people to mistakenly believe that all members of this clan are skilled in these techniques. Obito completely shattered this misconception.

As the group planned to exercise in the snow that afternoon, Shizune noticed that Furukawa Osamu was once again lost in his usual contemplative state, and couldn't help but whisper with concern:

"Xiu, it's still too difficult to make a secret medicine right now. Tsunade-sensei just made a casual request."

The pharmacology class a few days ago was taught by Jonin Tsunade. While teaching how to make soldier pills, she also praised the secret medicines of the Akimichi and Inuzuka clans.

The original intention was to prevent people from underestimating the importance of the soldier's rations, but after the course, Osamu Furukawa wanted to improve the soldier's rations based on the existing design.

"I just want to apply my knowledge in practice, don't worry."

Seeing the worried look on the girl's face, Furukawa Osamu gave a simple response, and then, as usual, asked Shizune to preview the afternoon's medical class together.

When the homeroom teacher, Ryosuke Kimura, appeared on the podium, Osamu Furukawa listened to the lecture while his mind raced. The "essence" he had collected was most likely natural energy, which gave him many ideas:

"Is it possible to create Sage Chakra even without sensing natural energy?"

-

In the last few days of Konoha Year 42, the weather finally cleared up, and the commercial street became lively again.

The New Year is approaching, a joyous time for everyone in the village, as they eagerly anticipate a peaceful and tranquil new year.

During the holiday, instead of going out to exercise, Osamu Furukawa stayed in the basement of his house to conduct simple experiments and observe the drug reactions of the test subjects.

After carefully examining rabbit number 6, I noticed no external abnormalities. Just as I was about to smile, I suddenly discovered a mouthful of sharp teeth in its mouth...

"Did it fail again?"

Dressed casually, Furukawa Osamu frowned slightly, carefully inspected the items, and sighed helplessly. He casually used the [Gather] skill, but found nothing, so he noted it down in his notebook:

"The optimized formula No. 6 failed, possibly due to the leakage of natural energy."

"..."

Unlike the fossilization from absorbing natural energy in memory, the "essence" energy obtained by collecting trees seems to be gentler and will not endanger life after mutation.

The "essence" cannot be used directly and will completely dissipate in less than half a day. When Furukawa Osamu was studying pharmacology, he accidentally discovered that it could be incorporated into some medicinal materials, which led to these "pharmacological" experiments.

The ration pills in the course are rich in protein. After absorption, they can restore physical strength, increase chakra, and have a certain stimulating effect.

However, Osamu Furukawa is not pursuing these things. He only hopes that the medicinal materials can effectively suppress the side effects of mutation. After two months of exploration, he has made considerable progress.

After continuously observing and recording the information, and reconfirming the most effective medication, Furukawa Osamu couldn't help but feel a pang of regret for his wallet upon seeing the recorded details.

"I hope it really works."

-

Snowflakes began to fall early on the first day of the new year. Although the weather was not good, the commercial street was unusually lively today.

Osamu Furukawa received an invitation from Shizune and Tsunade, but to his surprise, the usually serious and meticulous teacher ended up getting completely drunk at home.

Tsunade lives in the "second ring" of Konoha, not far from Konoha Hospital. The two-story apartment is very large, but it is a bit deserted, obviously because the owner has not taken good care of it.

Looking at the clean plates on the kotatsu table, Shizune explained somewhat embarrassedly:

"Lady Tsunade isn't usually like this. She may have encountered some problems recently. I originally wanted to hand these over to you personally."

The girl handed over the scroll, and Furukawa Osamu smiled gently. Before they could exchange gifts and thank each other, Tsunade, half-drunk and half-awake, suddenly raised her head, tilted her body, and looked at the two of them, saying:

"Having ninja talent isn't necessarily a good thing, kid. Excellent people always pursue some great goals."

"And you? You're working so hard to learn all this, it's making Shizune less cute..."

Unlike her usual Jonin attire, Tsunade, who rarely wore a kimono, had blonde hair and her eyes became clear when she looked at Furukawa Osamu.

"Right now, I just want to live a better life and protect some important people."

"How unlovable! I'd like a bowl of vegetarian noodles..."

Upon hearing these words, Tsunade muttered something and reverted to her drunken state.

Shizune felt a little embarrassed when she saw Furukawa Osamu nod and get up. Just as she was about to speak, Tsunade pulled her into her arms.

Noticing that the teacher had started "talking nonsense" with the girl again, Osamu Furukawa glanced at him and sighed inwardly:

"As expected of the Sannin 'Lord'!"

Chapter 7 True Ninja Talent

In July of Konoha Year 43, the Ninja Academy resumed its "private tutoring" program.

Students can choose to participate in outdoor survival training camps organized by the school, or they can use this time at their own discretion and make their own arrangements.

In the training ground on the hill behind the school, Matt Kai sat leaning against a huge tree, his eyes fixed on the two people colliding above him.

"Ding..."

The crisp sound of kunai colliding continued. Kakashi, wearing a ninja headband, dashed across the thick tree trunk, leaped repeatedly, paused slightly, gathered his strength, and bounced back to close the distance again.

Kakashi swung his kunai around in quick succession, sparks flying from the impact. Seeing Furukawa Osamu swiftly flip over his head, he quickly twisted his body.

Kakashi ducked to block, sparks flying again. After narrowly dodging the continuous attacks, he attempted a counterattack with a high kick followed by a swift twist and thrust at his opponent.

In a split second, he precisely clamped his arm, and Furukawa Osamu's left-hand kunai successfully blocked the attack. Before Kakashi could even put up a fight, Furukawa turned into a puff of smoke with a "bang".

"Shadow Clone Technique!"

The thought had barely crossed his mind when Kakashi noticed the kunai behind him. His previously sharp gaze returned to a deadpan expression, and he let out a long breath, saying in a low voice:

"When did you use Shadow Clone Technique?"

"That's a secret, Kakashi. How's your exam preparation going?"

As Furukawa Osamu asked questions, he jumped down from the tree branch. Kakashi, following behind, started complaining again when the Chunin Exams were mentioned:

"The captain didn't recommend me to participate in the joint exam; it was just an internal selection within the village."

"You know, ordinary genin can't keep up with me. I just don't want to do those boring D-rank missions anymore."

Seeing Kakashi shrugging, Furukawa Osamu shook his head slightly. Might Guy, who had overheard their conversation, perked up and excitedly asked:

"How was the C-rank mission? Kakashi, how much did you get paid?"

“1 taels? I don’t care about that. Most of them are guard or intelligence gathering missions. It would be a bit difficult for Kai. I don’t think you are good at infiltration operations.”

With his hands in his pockets, Kakashi shrugged after saying this, clearly "getting revenge" for the "youthful blow" Might Guy had given him earlier.

Everyone understood the underlying meaning in Kakashi's words, but Might Guy himself crossed his arms and fell into deep thought. After a while, he looked up and said:

"My transformation technique does still have some problems. If it's an infiltration mission, I need to continue practicing."

"In order to receive a C-level mission as soon as possible, I need to complete 500 side kicks!"

Upon hearing the "Daily Youth Challenge," Obito Uchiha stiffly turned his head. He regretted coming to find Kakashi; he couldn't keep up with the others at all.

"Come fishing! I don't want Lin to go hungry."

Obito decisively changed the subject, loudly calling the group to the riverbank. In the distance, Nohara Rin and Shizune had just finished gathering some wild vegetables to prepare for today's "barbecue day" activity.

It was everyone's first time fishing, and after half a day, only Kakashi had a good catch.

Unexpectedly, he could also use the air force here. Feeling somewhat embarrassed, Furukawa Osamu ultimately chose the ninja method:

"Lightning Release: Earth Walk!"

"Hey?! You rascal..."

Amid Obito's exclamation, several fish surfaced simultaneously. Seeing Furukawa Osamu calmly walk over and collect the fish into a bucket, the hot-blooded Uchiha youth roared in anger:

"You're cheating again! Damn it, we agreed to settle this with a fishing game..."

"I see, this is also a form of cultivation. Here I come!"

He casually tossed the fishing rod aside and rushed onto the water. Although he couldn't maintain his balance, he didn't sink immediately either.

Water splashed everywhere, and Obito shouted angrily from the shore, while Kakashi calmly left with his bucket after reeling in his catch; he had already obtained enough ingredients.

Although he didn't know the species of fish, it was meaty with few bones and very suitable for eating, so Matt Kai buried his head in it and ate heartily.

On the other side, Obito was still unhappy about losing the fishing duel and would complain every now and then.

"Kakashi, are the Chunin Exams difficult?"

Having a rare opportunity to spend time with the boy she admired, Rin Nohara took the initiative, her soft questioning making Obito choke on his grilled fish...

“The village’s internal selection process shouldn’t be that difficult; it places more emphasis on ninja skills and personal abilities.”

"Now that Jonin have many missions, more people need to take on the lower-level missions."

Kakashi seemed unconcerned about the promotion, and calmly offered an explanation, his unspoken confidence further provoking Obito.

"Kakashi is a guy with outstanding ninja talent. I wouldn't be surprised if he became a Jonin at the age of 12."

Furukawa Osamu smiled and praised, while Nohara Rin glanced at Kakashi with an unintentional look of admiration, causing Obito to shout loudly:

"What outstanding talent! As long as I can awaken the Sharingan, becoming a Jonin will be no problem, and I can easily surpass this show-off."

"Kakashi has excellent control over chakra."

Even the usually taciturn Shizune spoke up in praise. Furukawa Osamu nodded, then looked at the unconvinced Obito and explained simply:

"The amount of chakra that gathers and flows in the human body's meridian system is limited. In order to ensure life safety, the eight acupoints in the body are used to limit the flow."

"The strength of chakra that can be carried and encapsulated outside the human body is also limited, so extraction and control are extremely important."

"The Uchiha clan possesses a vast amount of chakra, and if it cannot be controlled precisely, it is difficult to unleash its full potential."

As Osamu Furukawa began his lecture, explaining the strength of ninjas through the meridian system and chakra flow, Might Guy listened intently, while Kakashi seemed to be deep in thought.

The two girls had studied medical ninjutsu and had a general understanding of it, but Obito listened with a face full of question marks, holding the grilled fish with his eyes wide open, as if to say:

What are you babbling about?

"Kakashi's talent is to instantly extract and precisely control a large amount of chakra. As he becomes a Jonin in the future, this talent will amplify the intensity of his ninjutsu."

Furukawa Osamu said nothing more, raised an eyebrow, and began to enjoy the delicious fish.

While these theories apply to all ninjas, there are always those who can break these inherent limitations.

The most prominent examples are Hashirama Senju, who possessed the "Chaton," the Uchiha clan, who piloted the "Gundam," and the prophesied child who frantically conjured Rasengan, among others...

"What?! Just let your body remember the feeling of fighting!"

Dizzy and confused, Obito loudly complained, pretending not to understand anything. Shizune chuckled softly, and even Rin Nohara smiled.

Kakashi noticed Obito grinning foolishly along with the girls, so he sighed dramatically, then shrugged and said:

"It's really tough on the bottom team!"

The two soon started arguing again, but Matt Kay was feeling rather heavy-hearted.

Involuntarily reflecting on his own limitations, Might Guy understood why his father didn't use forbidden techniques lightly; the damage was greater than he had anticipated.

-

At the end of September, the news of Kakashi Hatake's promotion to Chunin swept through the entire village, and even visiting merchants praised Konoha's genius boy.

As time went by, news of the 6-year-old Chunin spread far and wide, sparking a frenzy of diligent study at the Ninja Academy...

The Konoha leadership seems to be setting an example, as more and more teenagers are starting to clamor for early graduation.

Before afternoon classes began, homeroom teacher Ryosuke Kimura made sure to praise Kakashi again, and also announced to everyone:

"By this time next year, Xiu will not only graduate from the Ninja Academy, but will also be able to officially participate in the work of a medical ninja."

"After evaluation, Lady Tsunade gave extremely high praise to Xiu's recently improved soldier ration pills."

From military rations to missions and wars, Ryosuke Kimura got more and more excited as he talked, and for a while he couldn't stop.

Sitting in the front row by the window, Osamu Furukawa was lost in thought. Ever since he started using the essence to cultivate some herbs, his "pharmacological" experiments had made rapid progress.

However, after solving the alienation problem, another problem arose. Reflecting on the attempts of the past few days, Furukawa Osamu pondered to himself:

"Can I only use Sage Chakra for one minute...?"

Chapter 8 Burning "Youth"

In late November of Konoha Year 43, spurred on by the 6-year-old Chunin Hatake Kakashi, the training frenzy at the Ninja Academy continued.

On weekends and holidays, more teenagers choose to come to the playground, and even the cold weather cannot stop their enthusiasm for exercise.

Obito Uchiha, who was at the bottom of the theoretical class, gradually showed his talent in the practical class, while Might Guy, who was admitted as a replacement, became an excellent student. Both theory and practice were thriving!