Immortality begins with the ninjas of Konoha.

On January 1st, Konoha Year 48, the first day of the new year, the medical ninjas at Konoha Hospital were still very busy.

Early in the morning, Tsunade conducted her routine patrol, focusing not only on the wounded but also on the ninjas who had taken "Kyounenmaru".

"Kuangnianwan" is the final name of the new drug, and this name has been unanimously approved by the drug users!

The young man lying on the hospital bed had lifeless eyes; he had survived a battle with the Iwagakure ninja.

"Lady Tsunade, could you give me some more Kyonen Pills?"

"Without war, with my dream teacher and Sachiko by my side, I would rather die in my fantasy than accept the current situation."

The young man began to break down after being calmed down by tranquilizers and is now contemplating suicide.

Tsunade's expression grew increasingly serious as she watched the muttering young man. She turned to Shizune and gave her a brief explanation:

"It has been confirmed that the drug amplifies the user's emotions, with less impact on those with strong willpower."

"Yes, Tsunade-sensei."

The girl felt a tightness in her chest as she watched the increasingly prevalent ninjas suffering from aftereffects. She couldn't imagine what they had gone through.

As the two left the ward, Tsunade walked and pondered. She remembered that the original form of the mutated herb was a herb used to calm emotions, but the mutated herb had the opposite effect.

It activates brain cells, amplifies emotions, and strengthens nerve transmission. Some ninjas can even activate chakra points and enter a "berserk" state by using it.

Tsunade grew angrier the more she thought about it. The village leaders had only seen the basic "chakra enhancement" function and used it, which had left her with such a huge problem!

When Tsunade returned to her office at noon, she saw Osamu Furukawa diligently organizing her files and said to him in an annoyed tone:

"Simply insisting on physical activation is enough; this is the consequence of haphazard research."

Furukawa Osamu didn't refute, but simply handed Tsunade, whose chest was heaving as she returned to her seat, tea:

"Teacher, it's all my fault for drinking tea."

Tsunade has been deeply researching physical activation, an extremely important technique in medical ninjutsu. Applying it to herself can also enhance her strength in all aspects.

Osamu Furukawa always has ingenious ideas, and when combined with mutated herbs that defy logic, he actually achieves quite good results.

"What angered me the most was the reaction of the village's ninja clan..."

Tsunade only spoke halfway through her sentence, realizing that her criticism might influence her disciple's view of the village, so she simply changed the subject:

"Here we go to Training Ground 3! Let me see what Orochimaru has taught you!"

"Tsunade-sensei, you haven't eaten anything all morning..."

Shizune tried to persuade her, but the girl was worried that Furukawa Osamu would be "punished" by Tsunade, so she kept giving him meaningful glances.

Furukawa Osamu smiled gently and looked at Tsunade, readily agreeing:

"Teacher, don't underestimate me. Even in terms of sheer strength, you can no longer suppress me as you used to."

"Stop bragging to me! It's lunch break time."

Tsunade stood up and suddenly realized that Furukawa Osamu was only a little over a fist shorter than her, and sighed inwardly:

"You've grown taller!"

"Come on, teacher! You haven't been practicing in a long time!"

"Don't expect me to go easy on you later!"

Tsunade tossed her blonde hair and walked away quickly, while Shizune, following behind, looked worried again, to which Furukawa Osamu responded with a smile.

-

In the third training ground, Tsunade, now dressed in her Jonin battle suit, stretched her wrists and noticed that Furukawa Osamu hadn't made much preparation. She frowned slightly and said:

"You can activate your body in advance using lightning-style chakra."

"Teacher, don't underestimate me!"

After responding with a single sentence, Furukawa lowered his center of gravity, opened his arms, and prepared to receive Tsunade's attack.

"Arrogant brat!"

Tsunade let out a low shout and then her chakra exploded beneath her feet, instantly cracking the ground. She swung her right fist and lunged straight at Furukawa Osamu.

"careful..."

The girl in the distance, who was shouting in silence, suddenly covered her mouth. She realized that the teacher's swift attack had been blocked by Furukawa Osamu, and the two of them were locked in a stalemate, each holding the other's fist.

Tsunade hadn't expected Furukawa Osamu's strength to increase so much. Unable to suppress her disciple, she immediately unleashed her [Monstrous Strength] and flung Furukawa Osamu into the air.

"drink!"

Furukawa Osamu curled up in mid-air, spinning rapidly as he fell. Hearing Tsunade's shout, he quickly shifted his position, and the ground subsequently cracked again.

Rock fragments flew as Tsunade swiftly closed in, attacking from both sides, but was blocked and dodged by Furukawa Osamu, who gradually increased the force of his attacks.

Furukawa Osamu dodged Tsunade's right fist by tilting his head. His cheek was slightly stung by the airflow, and he suddenly lowered his body and increased his speed.

Tsunade saw visible chakra emanating from Furukawa Osamu's right hand as he slashed towards his right shoulder, and instinctively jumped back to create distance.

After regaining her footing, she frowned and asked while treating her shoulder:

"A chakra scalpel?!"

Furukawa Osamu didn't respond. Chakra surged in both hands as he quickly lunged forward.

The distant silence made it difficult to see Furukawa Osamu's attacks, and Tsunade gradually lost patience with her disciple who used "snake-like" movement to strike and run away.

When Furukawa Osamu's chakra scalpel disappeared, Tsunade seized the opportunity to get close, throwing a series of punches before suddenly leaping up and slashing down!

"boom!"

The earth collapsed, its power completely different from before. The burst of air forced the distant Silent One to quickly steady herself.

After Tsunade unleashed a torrent of chakra, her speed and power increased once again.

After dodging several attacks, Furukawa had to reach out to block again, only to be caught by Tsunade instead.

In close combat, Furukawa Osamu's power was suppressed, and he was eventually completely locked down by Tsunade.

"You kept jumping around! I finally caught you!"

"Teacher, I'm suffocating!"

Seeing that Furukawa Osamu's head was sunk into his chest while locked up, Tsunade didn't loosen her grip; instead, she increased the pressure while muttering incantations:

"You're the one who caused all this trouble! I really want to strangle you! I haven't had a drink in months, and I haven't even had time to go to the new casino!"

"What Naruto! Do you know how troublesome that is?!"

"What should we do with those advisors and core members? They were all the old man's comrades back then."

"If various departments need to replace personnel, who will voluntarily give up their positions? I'm not like Orochimaru, someone who will stop at nothing to achieve his goals."

Furukawa Osamu had to pat Tsunade's arm; he had almost suffocated. After being released, he patted his knees, panting, and looked up, forcing a smile as he said:

"It seems Tsunade-sensei is in a much better mood. With great power comes great responsibility!"

"Orochimaru-sensei told me about the so-called 'darkness,' but perhaps in the future, this power will no longer be needed to support the village."

"I will help you cut through that darkness, so that the teacher can gain his own power."

Tsunade wiped the sweat from her brow. In a great mood, she merely chuckled at Furukawa Osamu's words, not taking them to heart.

"Don't try to show off in front of me!"

"Your strength has increased rapidly. No wonder you can cultivate the immortal techniques of the Wet Bone Forest. You are better than me at physical activation."

Furukawa Osamu felt a little helpless after hearing Tsunade's encouragement. Seeing Shizune running over with an admiring look on her face, he sighed inwardly:

"No one believes me whenever I tell the truth."