Naruto: Uchiha Survivor Forced to Save the Shinobi World

After using the 'Lampbearer' ability to return to the village, Uchiha Shinji dismissed Haku and Sasuke, then quietly made his way alone to the secret laboratory outside the village.

Removing his mask and shedding his red-cloud cloak, Shinji approached his workbench.

He pulled out his notebook, reviewing the freshly recorded data on the physical reactions of the 'Upper Moon Two' after being dosed with the Type II aging potion. His expression grew noticeably heavier.

The Type II aging potion, in which he had placed high hopes, performed far worse than expected against a demon of the 'Upper Moon Two's' caliber.

According to simulations by Tsunade's research team, injecting a large dose of the Type II aging potion into the demon locked in the lab could potentially kill it outright.

Yet, a potion capable of killing an ordinary demon had such a diminished effect on an 'Upper Moon' demon. It was easy to imagine how little impact it would have on the mysterious figure known as the 'Demon King.'

"I never expected the recovery abilities between demons to vary so drastically."

Muttering to himself, Shinji began working on optimizing the aging potion.

During this time, he hadn't been slacking in the research team. Beyond his assigned tasks, he had also learned a great deal about drug formulation from the potion team.

According to the potion team, Shinji was now a qualified assistant apothecary.

This wasn't just polite flattery from the potion team but an objective assessment of his skills.

However, this wasn't the full extent of Shinji's capabilities. What the medical shinobi of the potion team didn't know was that, in addition to possessing a pair of Eternal Mangekyo Sharingan with unparalleled insight, Shinji also wielded a pair of Byakugan capable of seeing through objects.

This alone put him ahead of many medical shinobi.

Moreover, with the entire Grass Village backing him—procuring equipment, gathering toxins, and poisons—he wasn't far behind the research team in resources. As a result, he could replicate any of the research team's achievements in his secret lab and even optimize them independently.

"In terms of stimulating cell division, the Type II aging potion is already performing well. What it truly lacks is the ability to penetrate the cell walls of the most elite demons. The demon in the lab is simply too weak, causing the potion team to overlook this issue."

"To deal with top-tier demons, merely stimulating cell division might even temporarily enhance the demon's condition. We need to incorporate more toxins that restrict the demon's state."

"Bioelectricity is the means by which demons manipulate their flesh. Suppressing bioelectricity could reduce a demon's cellular vitality, weaken their control over their body, and perhaps even dull their cognitive abilities."

Through the brutal battle Sasuke fought against the 'Upper Moon Two,' Shinji had obtained a wealth of firsthand data, giving him a clear direction for optimizing the aging potion.

The next morning.

As usual, Shinji woke up early and headed to the shinobi academy. After finishing his morning classes, he went to the laboratory with Yakumo.

Since the Type II aging potion had yet to progress to live testing, the research team, once bustling, had become rather idle.

Taking advantage of this lull, Shinji privately proposed a plan to the potion team to further optimize the aging potion.

After hearing Shinji's proposal, the medical shinobi of the potion team greatly admired his ideas but unanimously agreed there was no need to optimize it to that extent.

"Shinji, your ideas are good, but they're really not necessary."

"Exactly! No biological cell structure can withstand the Type II aging potion. Further optimization is just a waste of resources!"

"The bioelectricity idea is worth discussing, but let's wait for Lady Tsunade's arrangements!"

The potion team members chimed in one after another, brushing Shinji off.

"Tch!"

Shinji clicked his tongue, his face full of exasperation.

To be fair, the potion team wasn't entirely wrong. After all, the shinobi world had never encountered demons that relied purely on the power of flesh to achieve such terrifying strength.

The ordinary demon in the lab had already left them dumbfounded, so it was hard for them to imagine demons even stronger than that one!

While Shinji was mulling over how to convince Tsunade, she was attending a high-level meeting at the Hokage Building.

Tsunade asked, "Is the information confirmed?"

A shinobi from the intelligence team replied, "Yes. Both Cloud Village and Rock Village have confirmed that last night, two members of the Akatsuki engaged in a fierce battle with the 'Upper Moon Two.' It's suspected that the Akatsuki emerged victorious."

To counter the immense threat posed by the Akatsuki, the five great shinobi villages had been forced to establish a more efficient communication network based on 'summoning techniques.' Thus, news of last night's events had reached Hidden Leaf Village after a day of transmission.

Danzo was somewhat irritated. "Those fools in Rock Village and Cloud Village actually thought they could capture the 'Upper Moon Two' alive. Utterly absurd!"

Koharu Utatane said, "I've received reports that not only Rock Village and Cloud Village but also Mist Village and Sand Village are secretly hunting the 'Upper Moons'!"

Tsunade spoke up, "I was about to mention that the drug trials targeting the 'Upper Moons' have reached a critical stage. However, the monster we previously captured is too low-level. I'm concerned that conducting drug trials on it directly might kill it. Therefore, I propose capturing a stronger 'Upper Moon' monster!"

Koharu nodded. "It seems the other villages are likely capturing 'Upper Moons' for drug trials as well."

Since Shinji was part of Tsunade's research team, Koharu was well aware of the team's progress. Influenced by Shinji, she also supported capturing an 'Upper Moon.'

Though Danzo hoped to use the 'Upper Moons' to weaken the Akatsuki, with the other villages already initiating their hunts for the 'Upper Moons,' Hidden Leaf Village couldn't afford to fall behind. He let out a cold scoff and said no more.

Seeing Danzo's opposition fade, the Third Hokage said, "Tsunade, you'll be in charge of the 'Upper Moon' capture operation. If you need personnel or intelligence support, you can request it directly from me!"

"Understood!"

Tsunade nodded.

After the resolution to capture an 'Upper Moon' was passed, Danzo suddenly said, "Regarding the purple 'Susanoo' mentioned in Cloud Village's intelligence, I recall that Uchiha Sasuke's 'Susanoo' is purple, isn't it?"

Seeing Danzo target Sasuke, Kakashi immediately responded, "Lord Danzo, Sasuke has been in the village the entire time. The Akatsuki member from last night couldn't possibly be him!"

Danzo sneered, "Perhaps the one in the village is just a shadow clone?"

"Enough. I'll investigate this matter!"

The Third Hokage waved his hand, adjourning the meeting.

After leaving the Hokage Building, Tsunade immediately returned to the laboratory and announced to the research team that the village had approved capturing a new test subject.

Shinji paused slightly, an idea forming in his mind.