Immortality begins with the ninjas of Konoha.

In mid-August, Tsunade went out on a procurement mission, and Osamu Furukawa began to take over some of the work at Konoha Hospital.

In another month he will turn 10 years old, and no one will treat him like a child anymore, since becoming a Jonin in 3 years is inevitable.

After several years of development, the scale and equipment of the herbal laboratory have been updated several times, and its variety of products far surpasses that of the other four major countries!

"Master Xiu, this is a newly cultivated herb that can revitalize cells."

"We have solved the mass production problem, and the quality of the herbs has also been guaranteed."

Han Fang gave a serious report, while Bai Cao handed over the relevant data report. After reviewing it, Gu Chuanxiu smiled and reassured him:

"Everyone did a great job. Jiraiya-sama is in the Land of Grass, so there's no need to force us to supply new medicine."

"Tsunade-sensei will explain this to the Hokage when she returns, and everyone can just continue with their work as usual."

The latest herb is a brand new product mutated from the "essence" that Furukawa Osamu collected. After extraction, it can activate cells and also has a slight berserk effect.

The newly developed drug had significant side effects, but the higher-ups ignored these concerns and deployed it directly to the front lines of the Grass Country.

Although they achieved good results in the battle at the end of last month, some ninjas also went insane due to "madness".

Tsunade was very dissatisfied with the village's decision, but the frontline ninjas begged for "more." No one cared about mental health issues; as long as they could kill the enemy and survive, that was enough.

The medical team members breathed a sigh of relief upon hearing Furukawa Osamu's words. They were all under a lot of pressure after learning that their village companion had gone insane, and none of them wanted to indirectly become the "murderer."

"Xiu, it's almost time to inspect the special care ward. We need to prepare in advance."

Shizune, who was acting as his assistant, spoke up to remind him. Furukawa Osamu nodded, took the uniform from the girl, and quickly gave instructions:

"Notify the special ninja in the hospital that we will be performing three surgeries this afternoon."

"yes!"

By evening, most of the medical ninjas, who had been busy all day, were pale-faced. Excessive chakra extraction was too much for even an adult's body to handle.

Wearing glasses and always maintaining a gentle smile, Pharmacist Nonou secretly observed Furukawa Osamu. She noticed that the boy's expression was normal and made a mental note of it. Then, a sense of guilt welled up in her heart.

Root ordered her to monitor Osamu Furukawa and gather detailed intelligence. Yakushi Nonou could not refuse; money and her child were her weaknesses.

"Thanks to the help of the pharmacist, I will set aside some funds for the orphanage recently."

"Don't refuse. Prices have gone up recently; this is for the children to improve their lives."

Furukawa Osamu approached Yakushi Nonou to express his gratitude, a genuine smile appearing on his face.

"Furukawa-kun, thank you so much!"

Yakushi Nonou thanked him softly, her guilt intensifying, and for a moment she even had the urge to confess everything.

However, recalling her experiences at Root, Yakushi Nonou ultimately gave up.

Furukawa Osamu didn't take the so-called "surveillance" to heart; the "rat" hiding in the shadows had no idea about his strength!

Death is the best "catalyst" for his strength.

When Shizune left work, she specially gave Pharmacist Nonou some snacks, and when she returned to the office, she couldn't help but sigh:

"The pharmacist is truly amazing, taking care of such a large orphanage all by herself!"

Furukawa Osamu also gave a thumbs-up, then continued helping Tsunade organize the documents. Noticing the girl's hesitant expression, he smiled and said:

"I'll cook dinner. I promised Tsunade-sensei I'd take care of you, so don't be shy. What would you like to eat? We'll go shopping later!"

Shizune cheered and huddled up next to Furukawa Osamu, chattering away. Finally, with an expectant look on her face, she said:

"Would you like to stay here tonight? I can help prepare breakfast."

"Next time, I'm going to Orochimaru's place after dinner."

The girl helplessly turned her hands behind her back when she heard "Orochimaru." She was a little afraid of the Sannin who used snakes. Compared to the soft, pliable slugs, snakes were still too terrifying.

-

In the dead of night, the village was shrouded in darkness. Orochimaru, dressed in a black Jonin casual outfit, looked at Furukawa Osamu with great interest and said in a hoarse voice:

"A keen sense of perception and innate assassination skills—no wonder Danzo began to be wary of you."

"Orochimaru-sensei, is it alright for you to tell me all this?"

Osamu Furukawa silently approached Orochimaru. This habit of "assassination" was inherited from Sakumo Hatake and has now become an instinct.

"The 'rats' lurking in the shadows have no idea of ​​our strength!"

"However, Danzo is right about one thing: darkness does exist in the village."

"Tsunade doesn't want to teach you these things, but I think it's limiting your talents. Shu, keep up with me."

After saying this, Orochimaru stuck out his long tongue and licked his lips, a strange smile on his face, and beckoned Furukawa Osamu to go with him into the dense forest in the west of the village.

Furukawa Osamu didn't waste any time and followed Orochimaru, arriving at their destination about 15 minutes later.

"Come with me, tonight I will show you another side of the village."

"Tsunade is ultimately a woman. The sooner she abandons her naive fantasies, the more great a career she can achieve."

After Orochimaru dispelled the illusion, an entrance appeared on the ground. Seeing Furukawa Osamu follow decisively, the corners of his mouth curled up again.

The tunnel was built in an extremely orderly manner. Orochimaru led the way, giving a brief explanation in a hoarse voice:

"Tsunade may have mentioned to you the development of Jinchuriki in other ninja villages, but she certainly didn't tell you that her village had also invested a great deal of effort in this area."

"We're not researching tailed beasts, but rather Konoha's unique bloodline limit!"

"In order to recreate this bloodline limit, the village did not hesitate to conduct human experiments, and hundreds of ninjas lost their lives as a result."

Orochimaru pushed open an iron door, revealing a room filled with numerous culture devices containing green liquid, mostly containing distorted human bodies and various organs.

"Sarutobi-sensei was very powerful in the past, but he still couldn't escape the ravages of time. As his body aged, he could no longer inherit that darkness."

"The same goes for Hanzo, who's known as a 'demigod.' That old guy is actually compromising with a major power; what an ugly sight!"

"Xiu, this is our first step towards eternity!"

Orochimaru looked at the "shocked" Furukawa Osamu beside him with a fanatical expression, a neurotic smile appearing on his pale face, and whispered the introduction:

"The cells of Hashirama Senju, the God of Shinobi and Tsunade's grandfather!"

At that moment, Furukawa Osamu's face turned pale, and he took a few steps back, asking in feigned shock:

"The cells of the First Hokage?!"

Orochimaru, seeing the expression he had anticipated, was very satisfied and responded in a low, hoarse voice:

"Yes, this is the best way to inherit the Will of Fire!"

"..."