Immortality begins with the ninjas of Konoha.

At the end of February, Jiraiya officially took over the work of the intelligence team, and the Jonin team began to be reorganized in an orderly manner.

Some low-level missions were taken over by the Chunin captains, and Kakashi, Might Guy, and Osamu Furukawa seized the opportunity to become "mission maniacs"...

Despite their young age, the trio earned the client's trust through their abilities.

Once again, Kakashi arrived alone at the memorial site. Carrying a short sword, he stared silently at Sakumo Hatake's grave for a long time before finally bowing his head and murmuring:

"Father, those three people also chose to commit suicide."

"Those companions aren't worth saving. If you had chosen the mission, perhaps everything would have been different."

"I won't make the same mistake again. Xiu is also preparing to participate in the Chunin Exams. In a few years, we will be able to lead missions on our own."

"Keep watching me, I'm prepared."

"..."

It was already noon when they arrived at the training ground. Despite the rare good weather, Kakashi still had a dead fish look in his eyes and looked lifeless.

Wearing a black training uniform, Furukawa Osamu didn't seem to notice Kakashi's expression. Compared to the memories in his mind, he was in much better shape now.

As Furukawa Osamu drew a short sword from behind, he infused it with wind-style chakra. The white fang-shaped short sword, radiating a white light, made Kakashi's eyes widen.

"The short sword in Sakumo-sensei's hand can cut through almost anything."

"Kakashi, if you want to inherit..."

"No, I will not be as weak as my father. I will continue to use it, but I will find a sword technique that suits me better."

Kakashi retorted, and after saying this, he took several deep breaths.

The thought of my father wielding his white-toothed dagger to save his so-called comrades always brings a dull ache to my chest.

Noticing Kakashi's change in mood, Furukawa Osamu didn't lecture him. Instead, he tossed the prepared scroll to Kakashi and then solemnly said:

"Since you don't want to use the nature transformation of wind-style chakra, then let's try another path."

"This is an A-rank Lightning Release ninjutsu that is not yet fully developed. You can choose the direction for its development yourself."

"Don't use it blindly. Once the body is activated, the speed will make you lose sight of the world."

Kakashi was about to ask a question when Furukawa Osamu tossed him the short sword and then quickly formed hand seals:

"Chou, Mao, Shen."

"Sizzle...!"

Visible blue arcs of electricity appeared on Furukawa Osamu's right hand, and the hissing sound that came to his ears was like the chirping of a thousand birds. Kakashi stood there dumbfounded, his eyes wide open.

"The key to this technique is to generate a large amount of chakra after activating the physical body."

"Be careful with the amount of chakra released through your hands. Excessive chakra can seriously harm you and even damage your meridians."

"If this defect is transferred to a short knife, it can be avoided. You'll need to develop that yourself."

Following the "excellent inheritance" from his memory, Furukawa Osamu released Chidori while giving instructions. Seeing Kakashi nod, he increased the release of lightning chakra again.

"Whoosh—Boom!!"

In the blink of an eye, Furukawa Osamu disappeared from his sight, and then a huge circular crater appeared in the opposite rock wall. Kakashi's eyes widened; the power far exceeded his expectations.

"Don't blindly pursue the power of techniques. If you continuously activate your body to extract chakra, do you know what the consequences will be?"

Furukawa Osamu gave another warning. Seeing the serious expression on his friend's face, Kakashi lowered his head, remained silent for a moment, and then replied:

"I'll die! I won't abuse this technique."

"I will show my father my choice."

After a brief explanation and demonstration, Osamu Furukawa instructed Kakashi on the nature transformation of lightning-attribute chakra.

With Tsunade's optimization of body activation, secondary stimulation extraction is not difficult; the key is precise control of chakra.

Subconsciously using Kakashi to assess chakra levels, even if one successfully trains, one can only barely release it once, while Furukawa Osamu can fully release Chidori four times with its power.

"Is it already at '4 cards'? The secret medicine and [gathering] are still continuously strengthening my body."

The Hundred Healings Technique accumulates Sage Chakra entirely through secret medicines, and when Furukawa Osamu was refining them, he even had the illusion of "cultivating immortality".

"Damn it, this is even harder than I imagined; my hands are completely numb..."

Kakashi, having failed to unleash his power, collapsed to the ground, panting heavily, his right hand trembling uncontrollably. Furukawa Osamu, regaining his senses, used a palm strike technique, and casually reminded him again:

"Basic body activation is enough to handle most battles."

"With your talent, try to avoid straight-line attacks. I don't want to see you dash into the enemy's arms and die together with them."

-

In mid-March, it's cherry blossom season again.

Rin Nohara, who is about to enter the fourth grade, has finally become an outstanding student in Class A through her continuous efforts!

His grades have consistently been in the top 5, and his learning of medical ninjutsu has also been quite smooth.

However, the girl has been feeling down lately because she hasn't seen Kakashi in a long time.

Recent rumors have caused Rin Nohara considerable worry, and her several attempts to visit Kakashi have all been while he's away on missions...

During lunch break, the girls automatically gathered around Shizune again. Recently, Osamu Furukawa has been seen near Tsunade, which means there will be another bento box.

"Furukawa-kun is really amazing!"

"Looks like Silent Mode has definitely succeeded; the love-filled bento box!"

"How is the beef marinated? It tastes ridiculously good..."

"Do you want to give up being a ninja?"

"There's nothing wrong with being a housewife; being a ninja is still very dangerous."

"..."

A constant chattering sound appeared in Silent's ears, a situation that had been occurring frequently ever since she shared her extra-large bento box.

Some girls tried to hide it at first, but later when everyone got together, they stopped pretending.

Shizune, who was always focused on her rice, never participated in these topics. She just wanted to keep up with the pace. Every time she saw Osamu Furukawa and Tsunade discussing new techniques and drug development, she would feel frustrated.

She couldn't even get the basics of the Hundred Healings Technique; she even fainted while accumulating chakra...

"Shizune, has Xiu mentioned Kakashi recently? Did that really happen?"

Having just finished a sumptuous lunch, Shizune nodded slightly after hearing the whisper in her ear. Seeing the worried look on Rin Nohara's face, she softly comforted her:

"Give Kakashi some time, he'll get better."

Obito Uchiha, who was listening intently to hear whispers, looked conflicted. During afternoon class, he kept glancing at Rin Nohara beside him.

After school, Rin Nohara waved goodbye to everyone but didn't go home immediately as usual. Obito, who was worried, noticed this and secretly followed her.

When Obito discovered that the girl had gone to find Kakashi, his heart ached again, and he tried to comfort himself along the way:

"It must be a coincidence!"

Kakashi, who had just pushed open the door, was slightly taken aback when he saw Nohara Rin. Before the girl could speak, he twitched his nose and looked into the distance, saying:

"Come out."

Obito scratched his head awkwardly, walked over to Rin Nohara and was about to speak when Kakashi, expressionless, looked at the two of them and quickly replied:

"Thank you for coming to see me, but I don't need partners who lack talent."

The gate closed, and noticing tears in Rin's eyes, Obito shouted angrily:

"You come out here and apologize to Lin!"

"..."