NARUTO: Ninja World Scientific Revolution

"You're back, Tsunade," Hiruzen Sarutobi said with a pleased expression. He had only expected Jiraiya to return to oversee Konoha for a while, but to his surprise, his student had been unexpectedly responsible this time—bringing Tsunade back as well. 

With two of the Sannin present, Konoha's strength had significantly increased. Jiraiya had also reported that Tsunade had overcome her hemophobia, meaning she had essentially regained her full power. 

This was great news for the village, both internally and externally. It would stabilize morale and serve as a deterrent to potential enemies. 

Tsunade scoffed. "Don't get any ideas, old man. I'm leaving as soon as I check on Kushina. You took a thriving village and turned it into this mess… No wonder Orochimaru—" 

"Tsunade!" 

Jiraiya cut in before she could finish. Though she stopped speaking, the message had already been delivered. She huffed in irritation before storming off. 

Her resentment toward Konoha was more about her teacher's leadership than the village itself. Once she finished dealing with Kushina's situation, she had no intention of staying. 

After she left, Hiruzen sighed and turned to Jiraiya. 

"Since you're back, stay in the village for a while. The Hidden Cloud and Hidden Sand aren't being friendly at the borders. The peace we fought for barely lasted two years—it won't be long before war breaks out again." 

"The Cloud I can understand, but the Sand? What's their problem?" Jiraiya asked, puzzled. 

He had personally led forces against the Hidden Sand during the last war and knew they had suffered significant losses. Could they really have recovered this quickly? On top of that, he had heard that the Wind Daimyo had cut their funding. 

"They got lucky," Hiruzen replied, taking a deep drag from his pipe. "They partnered with the Uzumaki Trade Association. In exchange for mineral rights in the desert, they've received a massive influx of supplies." 

Hiruzen had been worried about this for some time. He had considered reaching out to the trade association himself, but Konoha had nothing of equal value to offer. Unlike the Sand, which was in dire need of resources, Konoha didn't have an urgent demand for supplies. In the end, the matter was left unresolved. 

Although Konoha and the Sand were technically enemies, ninja villages had no authority over noble-backed merchants. Moreover, their peace treaty prevented Konoha from intervening, leaving only the Fire Daimyo with the power to interfere. 

Hiruzen then brought up the Nine-Tails incident, including the Sharingan that had been spotted in the beast's eyes. Though they hadn't yet identified the culprit, Konoha had responded by relocating the Uchiha to the outskirts of the village, making them easier to monitor. If another Nine-Tails disaster struck, they wouldn't have a second Fourth Hokage to save them. 

Jiraiya sighed heavily. "I can't believe so much has happened… I'll stay in the village for now." 

Though he had planned to continue his travels, the loss of Minato and Konoha's current state made it impossible for him to leave. 

"By the way, about the Uzumaki Trade Association…" 

Jiraiya had intended to investigate it thoroughly, as per Minato's request. But before he could gather much beyond rumors of the "Mask Saint with Unrivaled Healing," he had been summoned back to the village. 

The trade association was a thorn in Konoha's throat—it could no longer be ignored. That was why Hiruzen had left the matter entirely to Danzo. 

"Advanced medical ninjutsu, huh…?" Hiruzen exhaled a plume of smoke. "That confirms it—the trade association is linked to Hyuga Mirai." 

Jiraiya's firsthand intelligence was reliable. Given what they now knew, the trade association had at least three top-tier medical ninja, one of whom was an Uzumaki capable of using Adamantine Sealing Chains. 

Skilled medical ninja were rare. Mastering high-level healing required formal training, typically passed down through direct instruction. Konoha's entire medical system had been built upon Tsunade's teachings, and its first generation of medical jōnin had all been trained by her. 

Hiruzen sighed inwardly. 

'If only he hadn't defected…' 

If Hyuga Mirai had remained loyal, Konoha would have been the strongest village in the ninja world. Even if the Nine-Tails rampaged twice, Konoha could have held firm. 

While Konoha struggled, Roran was thriving. 

The expansion of the oasis had transformed the region into a livable paradise. The Uzumaki Trade Association had also introduced high-yield crops, significantly improving agricultural production. 

As a result, the association's reputation among Roran's citizens had soared—surpassing even Queen Sara's. 

Before the trade association's arrival, the people of Roran could barely fill their stomachs. Now, their standard of living had increased severalfold, and they no longer had to endure the relentless sandstorms. 

Merchants wearing the association's insignia were treated with the utmost respect by the locals. 

Once, Queen Sara could have called upon her people to fight for her. 

Now, if she issued such an order, nearly half of Roran's citizens would side with the trade association instead. 

And as time went on, that number would only continue to grow. 

At the Dragon Vein Tower, Hyuga Mirai had just completed his research on cultivating the Nine-Tails' chakra. 

It had taken him ten days, but he had finally managed to purge the negative emotions from the chakra using natural energy and had developed a method to refine it further. 

"Based on the amount of chakra stored within Ayaka, even with the Dragon Vein accelerating the process, it will still take four to five years to cultivate it fully." 

He paused, then smirked slightly. 

"But at least the Dragon Vein won't run dry. This place seems to naturally gather energy."

Hyuga Mirai analyzed the calculations. If he reduced the cultivation time of the Nine-Tails' chakra, he could produce several chakra reserves equivalent to four or five tails within five hundred days—more than enough for his subordinates. 

Those who carried his cultivated Nine-Tails' chakra could be considered pseudo-jinchuriki. However, unlike true jinchuriki, their chakra contained no beast consciousness—it was merely an energy reservoir. 

Because of this, a pseudo-jinchuriki would struggle to achieve perfect control. Without a Tailed Beast to help regulate the chakra flow, managing two different chakra types solely with their own ability would be exceedingly difficult. 

"This should be enough for now. A four-tailed Nine-Tails chakra bearer would be nearly unbeatable in the ninja world. Even against a duo from the Akatsuki, they could at least hold their ground." 

He decided that Ayaka Uzumaki would extract the secret of the Tailed Beast Bomb from the Nine-Tails and pass the technique to those who would receive the chakra. 

Just as he settled the matter, Unit 18 approached with a report. 

"Queen Sara wishes to see me?" 

Mirai considered for a moment. Nothing unusual had happened in Roran lately, so he turned to Unit 18 and said, "Let her in." 

Once permission was granted, the mechanical sentries at the entrance escorted Queen Sara inside. 

"Mirai-san," she greeted politely. 

"No need for such formalities, Your Majesty. This is Roran," he replied with a slight smile, pouring her a cup of tea. "What brings you here today?" 

"Please, just call me Sara," she corrected, hesitating briefly before continuing, "I'd like to study medical ninjutsu under you, Mirai-san." 

Medical ninjutsu? 

Mirai glanced at her and quickly deduced her reasoning. 

Roran's people were now living in prosperity, and many had taken jobs within the Uzumaki Trade Association. Even when disputes arose, they turned to the association's administrators for mediation rather than their queen. 

It seemed unlikely that Sara wanted to learn medical ninjutsu to reclaim authority. More likely, she had noticed the shortage of doctors in Roran and wanted to help her people. 

"Sara, if your goal is to heal your people, there's no need for you to study medical ninjutsu," Mirai said. 

Then, he tapped his wrist communicator. "Unit 18, has the medical unit been fully assembled?" 

The medical unit was a device Mirai had designed and optimized with Unit 18's data. It could diagnose 99% of known illnesses and, once infused with medical talismans for energy, use nano-mechanical arms to administer treatment. 

The first-generation model could cure nearly any ailment aside from organ transplants. Its only limitation was its reliance on yang-based chakra from medical talismans, as it could not yet convert ordinary chakra into healing energy. 

"It's complete, sir, though we haven't gathered sufficient clinical data yet," Unit 18 responded. 

"The best data comes from real-world use. If it's finished, let's introduce the first medical unit to the people of Roran." 

With that, Mirai stood and gestured for Sara to follow. 

"Sara, let's go see the Uzumaki Trade Association's latest invention. With the medical unit, there's no need for conventional medical ninja." 

Sara, having overheard their conversation, was filled with curiosity. A medical unit? Another invention from the trade association? 

Shortly after, when she witnessed the machine in action, she was utterly stunned. 

Realizing that even a decade of medical ninjutsu training couldn't match the machine's efficiency, she abandoned her desire to learn healing techniques. 

"Mirai-san, please, I beg you—leave one of these life-saving machines in Roran!" 

Overcome with emotion, she grabbed onto his sleeve and bowed deeply. 

Mirai glanced at her, then looked away. 

"There's no need for that, Sara. The medical unit was created for civilians. Even if you hadn't asked, I had already planned to leave two here for Roran's people. Now, stand up." 

Sara quickly straightened, her face flushed with embarrassment. 

With the medical unit in place, Roran's citizens would no longer suffer from disease. That thought filled her with joy, but at the same time, a sense of unease crept into her heart. 

Lowering her head, she quietly asked, "Mirai-san… what can I do for the people of Roran?"

(End of Chapter)

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