Konoha's Tag-System Ninja

"Shisui!"

Shūichi appeared beside Shisui, who was feeding his crows.

"Shūichi," Shisui greeted him warmly, turning with a gentle smile. "I can feel a powerful surge stirring within me. I sense it's about to awaken."

Shūichi's eyes lit up with excitement. "It seems that awakening and evolving the Sharingan doesn't necessarily require emotional trauma. The key lies in mental strength and spiritual resolve."

Shisui nodded in agreement.

Though his Mangekyō Sharingan hadn't awakened yet, the sensation was undeniable. The awakening of his eyes felt vivid and imminent.

After finishing with the crows, the two returned indoors and sat down.

Shūichi detailed the preliminary plan he had just discussed with Minato Namikaze.

As Shisui listened, his eyes gleamed brighter and brighter. Usually calm and composed, he couldn't help but grow increasingly enthusiastic.

Previously, Shūichi had shared his grand ambitions with him, but they had lacked a concrete plan. Now, there was a clear outline, and it even had the Fourth Hokage's support.

"Shūichi, I believe you can do it!" Shisui declared confidently.

Shūichi corrected him with a smile, "Not just me, Shisui—we can do it!"

Shisui nodded firmly and extended his hand.

Clap! 

Shūichi grasped Shisui's hand, and their chakras connected.

At that moment, Shūichi clearly felt Shisui's powerful spiritual energy. It surged through his mind, generating a unique Yin chakra that affected his optic nerves and eyes.

The next moment, Shūichi saw Shisui lower his gaze. When he raised his eyes again, blood trickled down his face, and the tomoe in his Sharingan spun rapidly before forming a new pattern.

The Mangekyō Sharingan had awakened!

Shūichi was genuinely happy for Shisui. "Shisui, congratulations! Not only did you awaken the Mangekyō, but you've also forged an unprecedented path for the Uchiha."

This made Shūichi ponder the origins of the Uchiha clan's eye evolution.

Was it all due to Black Zetsu?

Indra was born with the three-tomoe Sharingan, and Black Zetsu guided the awakening of the Mangekyō.

Even the Uchiha clan's stone tablet, which detailed the methods for evolving the Sharingan, had been altered by Black Zetsu.

Could it be that the current methods for awakening and evolving the Sharingan were a deliberate misdirection by Black Zetsu?

Shisui wiped away the blood and smiled. "It's all thanks to your theories, Shūichi. They gave me the confidence I needed."

"I only provided some speculative analysis," Shūichi said modestly, looking at Shisui with eager anticipation. "This is the Uchiha's third pair of Mangekyō. I've already experienced Obito's ocular powers. What's your Mangekyō ability, Shisui?"

"The Sharingan is said to reflect the heart, and its abilities often align with the wielder's deepest desires or strengths."

Could it still be Kotoamatsukami?

Shūichi was curious.

Shisui smiled knowingly. "Why don't you guess, Shūichi?"

Shūichi chuckled. "Shisui, you excel at genjutsu, so I'm guessing at least one of your abilities is genjutsu."

Shisui nodded and stopped teasing. "Both of my eyes are genjutsu-based."

As expected, it was Kotoamatsukami!

Shūichi silently confirmed his suspicion. "Obito's Mangekyō abilities are both related to space-time ninjutsu, though each eye has a different variation. What about yours?"

Shisui explained, "My Mangekyō Sharingan's ability is called Kotoamatsukami."

"My left eye can permanently and irreversibly alter a person's will in a single instance. My right eye, on the other hand, can silently infiltrate an enemy's mind, manipulating their thoughts and making them act according to my will without them realizing it."

"Moreover, my ocular powers bypass a major weakness of the Sharingan."

"As you know, using Sharingan-based genjutsu usually requires direct eye contact with the target. Kotoamatsukami doesn't."

Even though he had anticipated it, hearing Shisui's explanation left Shūichi in awe. "What an incredible genjutsu!"

"A technique like this far surpasses my own Palace of Memories."

Shisui chuckled. "Shūichi, you're selling yourself short."

"Besides, didn't you once say that no jutsu is perfect?"

"My Kotoamatsukami has its flaws, just as your Demonic Realm: Palace of Memories does."

"The left eye's ability, while instant and permanent, has its limits. Though I haven't tested it in battle, I can sense that the chakra consumption is enormous."

"The right eye's ability, if discovered, can be countered by the target, breaking free from the genjutsu."

"And besides, Kotoamatsukami probably wouldn't work on you, Shūichi."

Shūichi laughed. "Shisui, that's because you told me how it works."

If he hadn't known, and Shisui had launched a surprise attack, the silent infiltration might have gone unnoticed, leaving him unable to counter in time with his Spirit Clone Technique.

Standing up, Shūichi said, "Shisui, let's go test your Mangekyō abilities right now!"

Shisui quickly stood, confused. "Do you mean we're going to Kirigakure right now?"

"No."

Shūichi grinned. "We're going to test it on Uchiha Madara's 'First Hokage knockoff'!"

"You mean White Zetsu—Tobi?"

"Yes! His brain is packed with complex sealing techniques, making it nearly impossible for the interrogation squad to extract any intel. But Kotoamatsukami might bypass those seals."

Shisui readily agreed. "No problem."

Using the Flying Thunder God Technique, Shūichi teleported himself and Shisui to the holding cell where White Zetsu Tobi was confined.

The moment White Zetsu saw Shūichi, he perked up. "So, you've finally figured out how to deal with me, huh?"

"Took you long enough! I've been so bored sitting here all by myself."

"Sure, I'm technically an artificial being, but I still have feelings, you know. Loneliness is a real thing!"

"Say, couldn't you at least lock me up with the other White Zetsu clones? At least then I'd have someone to chat with about what it feels like to poop."

Shisui was dumbfounded.

Shūichi, however, just smiled—he was used to this nonsense. "Actually, I have found a new way to deal with you."

Truth be told, Shūichi could simply extract White Zetsu Tobi's soul, bypassing the seals entirely. But Tobi, being one of the more unique Aloe-White Zetsu variants, had a certain value he wasn't eager to discard.

Not all White Zetsu were created equal.

The ten or so clones they'd captured before were merely offshoots of this specialized White Zetsu.

By gaining control of Tobi, not only could they acquire a powerful asset, but they could also infiltrate the Akatsuki organization.

...

"Is it him?"

White Zetsu-Tobi glanced at Uchiha Shisui.

He clearly recognized him, having monitored Shisui in the past.

"Are you planning to use the Sharingan?"

White Zetsu-Tobi spoke with confidence. "That won't be enough, even if it's a Mangekyō Sharingan…"

Then he paused, staring at Shisui. "You actually awakened the Mangekyō? Impressive—no wonder I had my eye on you as a genius!"

Shisui was taken aback. "You've been monitoring me?"

White Zetsu-Tobi chuckled. "Of course. I know a lot about the Uchiha clan."

Shisui's eyes narrowed. "So, you chose Obito?"

White Zetsu-Tobi smiled but didn't answer.

Shūichi stepped in, saying, "Shisui, use Kotoamatsukami on him."

"But first, activate your curse mark to reduce the strain."

Shisui's curse mark was a newly developed Star God Curse Mark, capable of amplifying both Yin and Yang Release.

"Understood!"

Shisui nodded, his Mangekyō Sharingan emerging.

White Zetsu-Tobi watched with interest. "So it's true—you've awakened the Mangekyō. Kotoamatsukami, is it? A genjutsu-type eye technique, perhaps?"

"Unfortunately, it won't work on me."

Shisui remained calm. "We'll see."

With that, he activated the curse mark. Lotus-like patterns spread across his face from his neck. Locking eyes with White Zetsu-Tobi, Shisui unleashed his Mangekyō's power.

Kotoamatsukami! 

White Zetsu-Tobi froze briefly before his expression shifted to shock. "Your eye technique… it bypassed the seal left by Madara Uchiha! And that was a Rinnegan-level seal!"

It worked?

Shūichi focused his gaze on Shisui, who was clutching his eye. "Shisui, how's your eye?"

Shisui lowered his hand, smiling. "Thanks to the curse mark, there's only a slight sting. The chakra expenditure wasn't too severe either.

"However, altering someone's will consumes a massive amount of chakra and ocular power. Even with the curse mark, my eyes will take two to three years to fully recover."

Two to three years.

Shūichi recalled that, in the original storyline, Shisui's left eye required over a decade to recover unless bolstered by Hashirama's cells.

Still, implanting Hashirama's cells required proper procedure and approval. He'd need to report this to Minato-sensei and also inform Tsunade out of respect.

With these thoughts in mind, Shūichi said, "Two or three years isn't too long. If you transplant Hashirama's cells, it could resolve the issue permanently. You'd also be free to use your Mangekyō abilities without worrying about going blind."

Shisui nodded. "Based on your earlier analysis, if my Yang Release—or physical strength—becomes strong enough, I could potentially evolve my Mangekyō into an Eternal Mangekyō on my own."

Shūichi agreed. "Exactly. Still, implanting Hashirama's cells won't hinder your exploration of Yang Release. I'll handle the arrangements with our teacher."

Turning to White Zetsu-Tobi, Shūichi asked, "Tobi, you mentioned earlier that the seal in your brain originates from the Rinnegan?"

Tobi immediately fawned, "As expected of you, Lord Shūichi, your insights are unparalleled."

"That's correct—it's a Rinnegan-based seal. After all, Nagato's Rinnegan originally belonged to my former master, Madara Uchiha!"

Shisui's expression shifted. "What? That's impossible!"

Tobi laughed. "Hard to believe, isn't it? But it's the truth. Since I've been compelled by your Mangekyō, lying is impossible for me—unless the information I have is incorrect to begin with."

Shūichi interjected thoughtfully, "It's likely true.

"From what we've deduced, during the battle at the Valley of the End, Madara used Izanagi to deceive Hashirama and Tobirama, obtaining Hashirama's flesh and gaining his power."

"Does this mean Madara's actions were premeditated?"

Tobi eagerly chimed in, "Precisely, Lord Shūichi! Madara will regret not valuing someone as brilliant as you earlier!"

"If my information is accurate, the battle at the Valley of the End was part of Madara's plan all along."

"The goal was to acquire Hashirama's flesh and gain his power. The Uchiha clan's tablet mentions a method to evolve the Eternal Mangekyō further: by combining the Uchiha clan's Mangekyō Sharingan with the Senju clan's Sage Body, one can gain the power of All-Creation and awaken the Rinnegan!"

(End of Chapter)

### EXTRA ###

The Kotoamatsukami (別天津神, literally meaning: Distinguished Heavenly Gods) are a group of five Shintō gods that appeared at the beginning of the universe. When the Heavens and Earth were created, three of these gods came down from the Takamagahara (高天原, literally meaning: High Heavenly Plains) as so-called 'single gods' (独神, hitorigami): gods that did not appear as a husband-wife duo. These three gods are called the 'Three Gods of Creation' (造化の三神, Zōka no Sanshin) and were:

Ame-no-Minakanushi-no-Kami (天之御中主神), the supreme god.

Takamimusuhi-no-Kami (高御産巣日神), the god of conquest and rule.

Kamimusuhi-no-Kami (神産巣日神), the god of birth.

After them, when the land was formed and sea was rising to the surface, two more gods appeared:

Umashiashikabihikoji-no-Kami (宇摩志阿斯訶備比古遅神)

Ame-no-Tokotachi-no-Kami (天之常立神)

These five gods have a special place among the Heavenly Gods (天津神, Amatsukami), hence their name: Distinguished Heavenly Gods (別天津神). After them came the 'Seven Generations of the Age of Gods' (神世七代, Kamiyo Nanayo), the last of which were Izanagi and Izanami, who were responsible for creating the Japanese archipelago.

### Trivia ###

Unlike most Sharingan-based genjutsu, Kotoamatsukami does not seem to require eye contact, as demonstrated by how Danzō cast it on Mifune without apparently removing the bandages that covered his right eye.

During the Five Kage Summit, the Fifth Mizukage commented that she could not help but conclude that there was a connection between this technique and the power that controlled Yagura Karatachi, the Fourth Mizukage.

...

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