The Mangekyo Sharingan Experiment... Fails!

After instructing the Ninja Cat to deliver a message of safety to Fugaku Uchiha, Ensei Uchiha decided to complete his experiments for increasing his strength within the ruins of the Empty Zone.

At this point in time, excluding the possibility of encountering the Otsutsuki Clan, Nagato was likely the strongest enemy Ensei Uchiha could face.

With Nagato's legs still unhealed, the Six Paths of Pain alone would not pose too great a threat to him.

However, Nagato's body should now be infused with the cells of a White Zetsu, and there was a high probability that his own mind had been altered by Kotoamatsukami.

More importantly, the Rinnegan was a natural counter to Ensei Uchiha's fighting style, which relied purely on overwhelming ocular power.

If he hadn't learned the Flying Thunder God in advance, he would likely have to resort to his trump cards, such as Izanagi, his own Sage Mode—which was fraught with hidden dangers—and a series of other forbidden techniques that carried a heavy price.

The level of risk for techniques that someone like Ensei Uchiha would classify as forbidden was self-evident.

"It is decided. I must find a way to awaken my own Mangekyo Sharingan; this is the simplest and most reliable method to increase my power."

"Only with the Mangekyo Sharingan can the Susanoo truly unleash its might, without being so easily absorbed by the Preta Path."

From his list of experimental plans, Ensei Uchiha selected the one he deemed simplest and began to implement it.

But before conducting the experiment to actively awaken the Mangekyo Sharingan, Ensei Uchiha still had much preparatory work to do.

For instance, creating a Hashirama Cells culture medium for his cloned Single Tomoe Sharingan, allowing them to grow into Three Tomoe Sharingan in the shortest possible time.

After all, the stock of Three Tomoe Sharingan obtained from Fugaku Uchiha was nearly exhausted.

Although he disliked this slow cultivation method, Ensei Uchiha still had to make preparations, lest he find himself without a Three Tomoe Sharingan when the need arose.

As a member of the Uchiha Clan, his own eyes were the most useful; unless absolutely necessary, Ensei Uchiha would not discard them.

Then there was the cloning experiment on the God Tree cells.

During the previous skirmish, although Ensei Uchiha had been fleeing the entire time, he had not been idle.

Before leaving, Ensei Uchiha used the spatial shifting power of the Flying Thunder God, and after many attempts, successfully sliced off a tiny piece from the Demonic Statue of the Outer Path.

The severed portion was only the size of an infant's fist, appearing quite insignificant compared to the Demonic Statue of the Outer Path.

But since it was a part of the God Tree, Ensei Uchiha intended to attempt to cultivate it.

As for the results, he held no expectations.

After all, the God Tree could almost be considered the foundation of the Otsutsuki Clan.

With Ensei Uchiha's current technology, it was impossible to research any results.

This was a long-term goal.

Having completed these two preparatory tasks, the experiment for the autonomous awakening of the Mangekyo Sharingan was about to officially begin.

Unlike Itachi Uchiha, Ensei Uchiha had nothing important in his heart, no tragic experiences, nor the assistance of Kotoamatsukami.

Therefore, to have any possibility of awakening the Mangekyo Sharingan, he had to blaze a new trail.

First was the choice of extreme emotion; Ensei Uchiha chose to let rage be the catalyst for awakening his Mangekyo Sharingan.

Next was a special White Zetsu infused with Hashirama Cells.

The cells of a White Zetsu were very similar to Hashirama Cells, yet fundamentally different at their core; Hashirama Cells possessed a more vigorous vitality, to the point of becoming highly aggressive and prone to spiraling out of control.

The White Zetsu, however, was a very gentle and somewhat deathly existence.

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But if the vitality of Hashirama Cells were injected into this gentleness, the White Zetsu would unleash powerful strength.

As a biological weapon, the White Zetsu was very successful, but it required a powerful energy supply.

Ensei Uchiha had reason to suspect that Hashirama Senju's Wood Release likely originated from the God Tree, and perhaps it was even orchestrated by Black Zetsu himself, all to shape the Rinnegan for Madara Uchiha.

Of course, there was no evidence for such speculation.

But none of that mattered; what mattered was the White Zetsu Cloak that Ensei Uchiha had now created, infused with Hashirama Cells.

This item could allow Ensei Uchiha to possess a recovery ability no weaker than Hashirama Senju's for a short period.

Ensei Uchiha clearly remembered that when the Sage of Six Paths awakened the Sharingan, it evolved directly into the Rinnegan, while his son, Indra, awakened the Eternal Mangekyo directly.

Considering everything, as long as he possessed a recovery ability similar to a Sage Body, the difficulty of awakening the Mangekyo Sharingan would certainly be reduced significantly.

Finally, Ensei Uchiha took out the tiny bit of special Chakra he had previously extracted from Itachi Uchiha's brain, and using the Transcription Seal technique, sealed it into each of his two Sharingan.

"The success rate for this doesn't seem very high..."

After pondering for a long time, Ensei Uchiha still took out a Three Tomoe Sharingan, performed a minor surgery on his own palm, and then cast the Transcription Seal on the Three Tomoe Sharingan in his palm, sealing Izanagi within it.

Failure is failure, but his own life must never go wrong.

With this contingency in place, no matter what turmoil the experiment might cause, it would be recoverable.

Immediately following, Ensei Uchiha injected the Rage Potion into his body without hesitation, followed by the potion intended to paralyze his flesh...

Under extreme rage, losing control was inevitable, so means to restrict his own body were necessary.

Next, taking advantage of the final moments before the potion took effect, Ensei Uchiha donned the White Zetsu Cloak infused with Hashirama Cells.

Instantly, Ensei Uchiha felt a majestic surge of vitality merging into his body.

Time ticked away second by second; the paralyzing potion Ensei Uchiha had injected had already taken effect, and he had now lost control over his body.

However, the effects of the Rage Potion had yet to manifest.

Just as Ensei Uchiha began to feel that his experiment had failed, a surge of extreme rage, originating from nowhere, welled up in his heart.

At the same time, that special Chakra sealed within Ensei Uchiha's eyes began to merge into them...

Regrettably, at this moment, Ensei Uchiha's mind was filled only with fury.

If he had not already lost control of his body, the trump cards he had treasured for so long would likely have been unleashed one after another.

Three months later, a pale-faced Ensei Uchiha walked out of the Laboratory, his eyes still lingering with a complex mix of joy and conflict.

"Ensei? Did your experiment succeed?"

Chachamaru, who had been guarding the door for three months, asked with a face full of concern.

But Ensei Uchiha knew that Chachamaru was not truly concerned for his safety; rather, he wanted him to help conduct more Sage Mode Chakra research experiments on the female cats of the Ninja Cat Clan.

Ensei Uchiha naturally had no other thoughts on these matters, but Granny Cat knew that Ensei Uchiha's research into Natural Energy was still insufficient.

Therefore, within the entire Ninja Cat Clan, only Chachamaru had mastered the ability to use Sage Mode Chakra.

"No, the experiment to awaken the Mangekyo Sharingan failed. But I accidentally discovered something even better..."