"I've heard that the Eternal Mangekyō Sharingan, besides retaining the abilities of both Mangekyō it comes from, can also give birth to entirely new eye techniques…"
"Does your eye have a new ability, Original?"
"Not yet."
The brilliant patterns within Ren's scarlet eyes rotated slowly.
Carefully sensing the power of his Eternal Mangekyō Sharingan, he frowned slightly.
"Maybe it's still being conceived and hasn't fully matured yet."
"Or perhaps I need to push my ocular power to its limits before a completely new ability can be born."
He speculated thoughtfully.
In the original timeline, Uchiha Sasuke had awakened his Mangekyō Sharingan but quickly overused it.
Soon afterward, he transplanted Uchiha Itachi's eyes, gaining the Eternal Mangekyō.
But during the Fourth Great Ninja War, before he had fully adapted or strengthened his ocular power—
he directly received the Sage of Six Paths' power and awakened the six-tomoe Rinnegan.
Perhaps because of that sudden leap in power,
the ability that should have belonged to his Eternal Mangekyō Sharingan was never born.
After all,
Sasuke never displayed such a technique.
Aside from the Rinnegan's basic abilities and the space–time technique Amenotejikara,
his combat style mostly relied on his original Mangekyō abilities—
Amaterasu, the inextinguishable black flames,
and Kagutsuchi, which manipulates those flames.
Of course,
this was only Ren's speculation.
It might not necessarily be correct.
"But no matter what…"
Ren smiled.
"Just Fugaku's Mangekyō ability alone already gave me quite a pleasant surprise."
"Oh?"
The Wood Clone looked surprised.
After all, it knew exactly how high Ren's standards were.
Ordinary eye techniques wouldn't impress him at all.
Clearly,
Uchiha Fugaku's hidden Mangekyō ability was extraordinary.
"Back then, Uchiha Shisui once had a plan."
Ren said lightly.
"He intended to use Kotoamatsukami on Fugaku, the clan leader, to stop the Uchiha rebellion."
"But that plan was ruined by Danzō, who had long coveted Shisui's Mangekyō."
"In the end, Shisui fell into despair and committed suicide."
Ren narrowed his eyes.
A trace of mockery appeared in his voice.
"But Shisui never realized…"
"Even if he had used Kotoamatsukami on Fugaku, it still wouldn't have worked."
Fugaku's Mangekyō ability had truly shocked him.
With this trump card in hand,
Ren no longer needed to fear facing Shimura Danzō or Uchiha Itachi in the future.
"Wait."
The Wood Clone frowned.
"Kotoamatsukami is supposed to be the ultimate genjutsu."
"It can silently invade someone's mind and permanently alter their will without them noticing."
"How could Fugaku resist it?"
"No matter how strong his genjutsu is, it shouldn't surpass Kotoamatsukami."
"You're right."
Ren nodded.
"Except for the Infinite Tsukuyomi cast by a Ten-Tails Jinchūriki, Kotoamatsukami is probably the highest-level genjutsu known."
"In fact, without Fugaku's ability…"
"Even with my Eternal Mangekyō, I wouldn't dare claim I could completely resist it."
"But Fugaku is different."
He continued calmly.
"The technique of his left eye is called Ukanomitama."
"Ukanomitama?"
The Wood Clone raised an eyebrow.
"It can reflect any genjutsu that targets the user."
Ren explained directly.
"The most terrifying part is that it activates automatically."
"It doesn't matter whether the user is aware or not."
"The moment a hostile genjutsu targets them, the technique activates and nullifies it."
"Although I haven't tested it yet…"
Ren said confidently,
"I'm certain Kotoamatsukami wouldn't work either."
As for something on the level of Infinite Tsukuyomi—
whether it could still neutralize that—
remained unknown.
At least for now,
Ren had no intention of testing it.
"Wow…"
The Wood Clone sighed in amazement.
"A Mangekyō ability that directly reflects genjutsu… that's unbelievable."
It couldn't have imagined Fugaku possessing such a strange power.
Then it asked curiously,
"What about the ability of the right eye?"
"The right eye's ability is Tsukuyomi."
Ren shrugged.
"Although Tsukuyomi can't forcibly rewrite someone's will like Kotoamatsukami…"
"it's still an extremely overpowered genjutsu."
Tsukuyomi could drag the enemy's consciousness into an illusionary world controlled entirely by the caster.
Inside that world—
time, space, and even physical sensation were completely dominated by the user.
The victim would suffer overwhelming mental and physical torment.
One could only say—
father and son truly resembled each other.
The Mangekyō abilities of Fugaku and Itachi both included Tsukuyomi.
Meanwhile,
Sasuke and Itachi both possessed Amaterasu.
"Especially with my current ocular power…"
Ren's Mangekyō spun slowly.
"If I cast Tsukuyomi on someone, even a normal Mangekyō Sharingan user wouldn't be able to break free easily."
"With proper use…"
"I can completely toy with my enemies."
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