[Shisui Uchiha: …Itachi, your desire to control Sasuke was too strong.]
[Itachi Uchiha: ...]
[Setsuna Uchiha: Even if it was for Sasuke's sake, you should have asked for his opinion. You can't force someone down the path you choose for them.]
Itachi silently thought: And you, the one who created Izanami, have the nerve to lecture me?
[FugaShiranui Kū Uchiha: I wonder what Sasuke's Mangekyō ability is.]
[Mikoto Uchiha: Whatever it is doesn't matter. What matters is that Sasuke avoided the Mangekyō's side effects. Sasuke, from now on, listen to Nagi, alright?]
[Sasuke Uchiha: I will, Mom.]
[MEidara Uchiha: Hmph. I'm curious to see what ability the brat obtained.]
Nagi looked at Sasuke with interest.
"So, Sasuke. What are your Mangekyō abilities?"
Sasuke closed his eyes briefly, sensing the changes within.
"Both of my eyes share the same name — Bishamonten.
My right eye can perceive the underlying principles of any technique… and instantly see through any genjutsu.
My left eye can amplify the power of any technique I use — instantly."
Nagi nodded thoughtfully.
"I see.
You no longer wish to be deceived — you want to see through truth itself.
And you wish to grow stronger immediately — no longer treated as a child. You want the power to protect what you choose."
Reactions
[MEidara Uchiha: Interesting abilities.]
[Tobirama Senju: The ability to perceive the structure of techniques… highly practical.]
[Ōnoki: Indeed. Information is everything in battle. One mistake, and you're finished.]
[Hiruzen Sarutobi: Just like Hidan's ability — without intelligence, you'd die without understanding why.]
[Izuna Uchiha: Then Itachi's TsuShiranui Kūyomi won't work anymore.]
[Kisame Hoshigaki: Itachi still has Amaterasu.]
[Shisui Uchiha: Sasuke has Kagutsuchi.]
[Kisame Hoshigaki: ...]
Nagi regarded Sasuke's abilities as extremely significant.
The Ōtsutsuki possessed countless overwhelming powers. Gathering intelligence on them was often difficult.
With Sasuke's Mangekyō, the principles behind their techniques could be instantly understood — allowing precise countermeasures.
Sasuke himself was satisfied.
But something else crossed his mind.
"Nagi… didn't you and Orochimaru already decipher the truth behind the Mangekyō? I recall you also obtained your own Mangekyō ability."
It was true.
After unraveling the emotional-chakra catalyst behind the Mangekyō Sharingan, Nagi had used Yin–Yang Release chakra to reconstruct a five-pointed-star Mangekyō pattern — forging his own unique dōjutsu ability.
Nagi coughed lightly.
"Ah… Sasuke. My Mangekyō ability is quite ordinary. Not worth mentioning."
His gaze drifted slightly.
"Really?"
Sasuke narrowed his eyes.
"For now, I can't even use it. So there's nothing to discuss."
Nagi quickly changed the subject.
"Why don't you test your abilities first? Get accustomed to the Mangekyō."
Sasuke nodded without further suspicion.
"Fine. I'll challenge Kabuto again — and show him the true power of the Uchiha."
He left at once.
Nagi let out a quiet sigh of relief.
Suspicion Spreads
[Tsunade: Something's off. Very off.]
[Shisui Uchiha: Off? Sasuke awakened normally. No emotional instability, no loss of control.]
[Kakashi Hatake: Not Sasuke. Nagi.]
[Naruto Uzumaki: Eh?! Is Nagi sick?]
[Shiranui Nagi: Naruto, I'm perfectly healthy.]
[Mei Terumi: Hmm~ Our handsome leader is hiding something.]
[Ōnoki: I recall Nagi even awakened Susanoo. That means he definitely unlocked his Mangekyō ability.]
[Hashirama Senju: Really? MEidara and I trained him for days — never saw him use it.]
[MEidara Uchiha: If he never uses it, how would we know?]
[Izuna Uchiha: Must be something… unusual.]
[Shiranui Nagi: It's truly nothing special. Please don't overthink it.]
No one believed him.
But personal abilities were sensitive information. Without disclosure, they could only wait for the Heavenly Curtain to reveal it someday.
Kabuto and Orochimaru, meanwhile, were very curious about Nagi's expression — after all, they had helped analyze the ability themselves.
Training Ground — Orochimaru's Base
Sasuke and Kabuto stood facing each other.
Orochimaru and the Sound Four observed from the sidelines.
Sasuke drew the Sword of Shiranui Kūsanagi.
"Kabuto. Today, I'll show you the true power of the Uchiha."
Kabuto smiled mildly.
"I look forward to it."
Sasuke rushed forward.
Kabuto activated Chakra Scalpel, shaping razor-sharp chakra around his hand.
Steel met chakra.
Clang! Clang! Clang!
The Sword of Shiranui Kūsanagi clashed repeatedly against the chakra blade. Dozens of exchanges — neither side gaining ground.
Sasuke activated his Three-Tomoe Sharingan.
Kabuto merely smiled and continued pressing forward.
Sasuke searched relentlessly for openings, but Kabuto deflected every strike with uncanny precision.
After mastering Sage Mode, Kabuto's physical abilities and sensory perception had greatly increased. Even without activating Sage Mode, he could track Sasuke's movements through subtle cues — air shifts, skin sensitivity, scent.
Kabuto transitioned from defense to offense, forcing Sasuke onto the back foot.
Sasuke realized he needed a change.
He deliberately exposed a minor opening.
Kabuto took the bait.
The chakra scalpel thrust forward —
Sasuke vanished from the line of attack and countered, slashing downward with the Sword of Shiranui Kūsanagi.
But Kabuto's body twisted unnaturally — serpentine — evading the strike and retreating.
"Tch. Orochimaru's soft-body modification."
Sasuke immediately infused Lightning Release chakra into his blade.
"Chidori Blade."
Kabuto increased the output of his Chakra Scalpel.
Just as Sasuke prepared to charge—
Kabuto stepped forward calmly.
"Sasuke-Shiranui Kūn… be careful."
The chakra scalpel suddenly extended —
From a short blade into a massive twenty-meter-long chakra greatsword.
Sasuke's eyes widened.
He raised his Chidori Blade vertically to block—
Clang!
Boom!!!
The sheer force sent him flying backward.
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