Transmigrated in Uchiha Clan with Sign-in System Start with Rennigan

"Unbelievable! Konoha actually has such a strong person! Who is this?!"

Ōnoki's face was filled with shock. The person before him was clearly a teenager, yet he had, in a short time, soundly defeated the Tsuchikage! Was this Konoha's hidden strength? Ōnoki wouldn't believe it if he hadn't experienced it himself.

"Where is he?"

After regaining his composure, Ōnoki discovered that the teenager who had easily defeated him had vanished without a trace. Even Ōnoki couldn't detect how he had escaped.

The Flying Thunder God Technique is an S-rank space-time jutsu; even Ōnoki couldn't find any trace.

"I was going to capture Sarutobi Hiruzen, but I couldn't even beat a Konoha teenager?" Ōnoki's morale completely crumbled.

Whoosh whoosh whoosh!

Several figures flashed past – Konoha Anbu, alerted by the explosion, arriving to surround Ōnoki. Then, Sarutobi Hiruzen arrived using the Body Flicker Technique.

"Ōnoki!? You're incredibly bold!" Sarutobi Hiruzen exclaimed, both surprised and furious. "No, Ōnoki is this battered; he clearly fought a fierce battle. Who in Konoha could overpower Ōnoki?"

Seeing Ōnoki's disheveled and breathless state, Sarutobi Hiruzen found it strange. Konoha actually had someone with such terrifying strength?

To be honest, both Ōnoki and Sarutobi Hiruzen overestimated Uchiha Kouki's strength; he was far weaker than they imagined.

Uchiha Kouki didn't have the confidence to suppress Ōnoki. Even ignoring the Six Paths abilities, his strongest technique, Planetary Devastation, could be easily broken by Ōnoki's Dust Release.

Planetary Devastation wasn't invincible. During the Fourth Great Ninja War, Itachi Uchiha, Naruto, and Killer Bee had jointly broken Nagato's Planetary Devastation.

Given the massive power difference between Uchiha Kouki and Ōnoki, breaking Planetary Devastation would be trivial for Ōnoki.

As for the other Six Paths abilities? They wouldn't be particularly effective. Take the Deva Path, for example. Banshō Ten'in and Shinra Tensei seemed unstoppable, but they faltered against powerful forces. They were, fundamentally, just powerful forces and could be countered.

When Uchiha Madara successfully cast the Infinite Tsukuyomi, in Tsunade's genjutsu world, the Six Paths of Pain attacked Konoha. Nine-Tails Naruto fought the Deva Path, who used Almighty Push.

The result? The Deva Path not only failed to repel Naruto, but Naruto's powerful force sent the Deva Path flying.

Later, with the combined power of two half Nine-Tails chakra forms, Naruto, without even using Kurama, directly broke through the Deva Path's Almighty Push!

While this occurred within Tsunade's genjutsu and wasn't real, it followed the logic of the jutsu system. The Infinite Tsukuyomi's genjutsu altered events and characters, but not the power system. It serves as a useful reference.

In short, no matter how powerful the jutsu, against a significantly stronger opponent, defeat is inevitable.

Ōnoki's defeat was due to Uchiha Kouki's unexpected missile attack and Ōnoki being in the air, limiting his defensive jutsu.

On the ground, Ōnoki could easily defend against the missiles with basic Earth Release techniques.

However, when Ōnoki is airborne, most attacks are ineffective. Uchiha Kouki's ability to attack from the air was his advantage.

...

"Summoning Jutsu!"

After a brief confrontation, Sarutobi Hiruzen, without hesitation, bit his finger and slammed it on the ground. A circle of markings spread. With a bang, Enma appeared in a puff of smoke.

"This is... Ōnoki?" Enma's eyes widened slightly. Knowing Ōnoki's strength, without Hiruzen needing to say anything, Enma transformed into the Adamantine Staff and flew into Hiruzen's hand.

Hiruzen firmly gripped the Adamantine Staff and thrust it towards Ōnoki in the air. The staff instantly elongated, reaching Ōnoki.

"Earth Release: Rock Fist Jutsu!"

Ōnoki quickly formed hand seals. Earth surged from his hands, instantly enveloping his right fist in a massive, exaggerated earth gauntlet. Ōnoki swung this enormous fist, striking the Adamantine Staff.

BOOM!

Rocks flew as the Adamantine Staff was repelled.

"Earth Release: Weighted Rock Jutsu!"

Ōnoki then formed a hand seal, making the staff many times heavier. It clattered to the ground; Sarutobi Hiruzen couldn't even hold it.

Whoosh!

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