Artificial Mangekyou Sharingan

Gospel Hospital.

Toji slowly opened his eyes.

He naturally understood that in a place like the Ninja World, if one lacked the power of Hashirama or Madara, huddling together for warmth was the only solution; there was strength in numbers.

An organization supported by only a boss and one member was far from enough.

In Toji's vision, the Passione Organization should be an entity that rivaled the "Akatsuki."

Adhering to the principle of quality over quantity, the members had to be the elite of the elite, specifically tasked with carrying out those dark missions that were inconvenient for him to handle under his Konoha identity.

But problems followed.

Toji couldn't think of anyone among the ninjas of this era who was worth recruiting into the organization.

Take the classic route and recruit future Akatsuki members in advance? Sasori, Biwa Juzo, Hoshigaki Kisame, Deidara, Konan... these people probably hadn't even been born yet, let alone their parents.

As for Kakuzu, his tracks were hard to find.

More importantly, Toji did not want to make contact with him again too soon.

This old guy, who knew his past and possessed similar power, was a hidden danger to him.

And currently, only one of Toji's main body or his parasite could exert full power.

So, there it was.

The Passione Organization couldn't even be considered a makeshift troupe yet; at most, it was a two-person act.

Toji could only rely on the art of language to paint a picture of the organization's strength and bright future for Uchiha Yan. If she kept pressing for details, it would be detrimental to unity.

As for the matter of members, he would see to it another day.

And the Mangekyou Sharingan that Uchiha Yan pursued so single-mindedly...

That was the strongest heavenly eye capable of seeing through the three realms; it was not something that could be deconstructed so easily.

However, Toji already had a lead on how to crack it.

When performing long-term physical examinations on Uchiha Chirori, he had used the excuse of checking her eye condition to have her voluntarily activate her Sharingan.

Through repeated contact with Mystical Palm Technique chakra, Toji sensed that when Chirori activated her Sharingan, her brain would secrete a highly specific chakra with distinct properties.

It belonged neither to Yin-Yang Release nor was it simple ocular power.

This had similar properties to the chakra that surged in Uchiha Yan's brain when she activated her Sharingan.

Toji judged that this special chakra, originating from the depths of the brain, was the true core key to unlocking the Mangekyou Sharingan.

He named it: Primordial Chakra.

The function of ocular power was to cast ocular techniques, while the function of Primordial Chakra was to unlock the Sharingan.

In previous experiments on Uchiha Yan, no matter how intense the emotional stimulation applied, no traces of this chakra had ever been detected.

From this, Toji concluded a cruel threshold—

[Primordial Chakra is only secreted by the brains of a very small number of Uchiha at the moment they lose the strongest love in their hearts and their spirits collapse.]

And even if one witnessed the death of a loved one, not everyone could necessarily catalyze Primordial Chakra.

Differences in constitution, aptitude, and mental strength meant that everything was just a matter of probability.

How many instances of intense love can a person have in a lifetime? Once lost, there is no chance to start over.

If it isn't secreted at that moment, it means one is destined to never reach the Mangekyou.

But Toji had thought of a way to blaze a new trail for eye-opening.

For those who cannot secrete Primordial Chakra, they simply cannot. But for those who have already awakened it, the brain will continue to generate it in trace amounts, with a tiny bit of surplus produced every time the Sharingan is activated.

Once refined, if the chakra is not used, it dissipates.

Because this tiny surplus is not utilized, it flows back into the human body.

His plan was to collect these minute amounts of surplus Primordial Chakra bit by bit and store them using the Yin Seal. When the total amount was sufficient, he would inject it all at once into the body of another Uchiha ninja to stimulate their brain, thereby catalyzing a brand-new Mangekyou Sharingan.

And if too much were extracted at once, it could damage the brain, making it impossible to secrete Primordial Chakra again, causing the Mangekyou to permanently degenerate back into a three-tomoe Sharingan.

This was just like a normal person donating blood.

Drawing too much at once would be life-threatening, but as long as there was enough time in between, small extractions would cause no harm.

This method was feasible, though it did not guarantee the opening of a Mangekyou; it merely increased the probability.

But Toji felt...

"It is worth a try."

Following this path, not only the Mangekyou, but even ordinary Sharingan could be opened in this way for Uchiha who originally lacked the talent to awaken them.

"Let a portion of the Uchiha open their eyes first, creating a cycle where those who have opened their eyes lead those who haven't."

"However, even with this method, which greatly lowers the difficulty of opening the eyes, a threshold still exists."

"The person opening their eyes must master the Yin Seal and be willing to cooperate with the extraction of Primordial Chakra; then, at the moment the other party releases the seal, I must use Earth Grudge Fear to extract all the Primordial Chakra..."

Toji sat in his chair, lost in deep thought.

Neither condition was easy to fulfill.

The former was difficult because, in Konoha, only Uchiha Chirori possessed a Mangekyou, and she was unaware that he was researching it; the latter was challenging because Toji had never used Earth Grudge Fear threads to perform such a complex operation.

"It seems it is about time to hand the Yin Seal over to Uchiha Chirori."

Toji let out a long breath, his gaze resolute.

The opportunity he had been waiting for to deliver the Yin Seal had arrived.

He did not do things that yielded no profit; he cared nothing for affection or trust. However, if he could use this to bind Uchiha Chirori to his Artificial Mangekyou Creation Project, he could not help but be tempted.

It was foreseeable.

Handing the Yin Seal to Uchiha Chirori would inevitably cause her favor toward him to soar, perhaps even pushing her into a state bordering on love.

And a woman in love is irrational.

Especially a woman from the Uchiha Clan, the clan of love.

Any inconsistencies or suspicious points would be automatically beautified or ignored by her brain.

This was exactly the opportunity Toji needed.

He would use it to get Uchiha Chirori to cooperate and continuously store Primordial Chakra.

Once the Yin Seal was fully charged, he would use the "Heavenly Mercy Thread"—which she perceived as harmless—as a cover to extract that precious Primordial Chakra.

A flawless plan.

Toji changed into his surgical scrubs and headed toward the operating room, following the schedule arranged by Yakushi Yato.

The person he needed to treat today was a Jonin of the Sarutobi Clan, Sarutobi Hideshige.

Coincidentally, this man was also the third uncle of Sarutobi Hiruzen. He had suffered a heart injury while executing a mission in the Land of Lightning and had barely managed to keep his life by relying on the Reverse Cursed Technique taught by the Senju Clan, leading to his emergency transfer to Gospel Hospital.

Fortunately, he had survived.

Unfortunately... he had lost his future from this day on.

Toji was familiar with the process; just as he had done last time, he planted a Parasitic Seed near Sarutobi Hideshige's heart.

For this surgery, Toji added one extra step.

The Heavenly Mercy Thread extending from his palm burrowed into the man's heart, attempting to extract chakra while the heart was still beating inside the body.

Extracting chakra directly from a heart in a living subject was a first for Toji.

This was different from those ordinary Chunin test subjects.

Since the target for the future extraction of awakening chakra would be Uchiha Chirori, the material used for practice had to be at least at the Jonin level to minimize the risk of errors during the formal implementation.

Toji began his practice for the Artificial Mangekyou experiment.