Uchiha Kirin raised his hand slightly and used Earth Release to dig a large pit, then casually tossed Obito into it.

He also dug out a White Zetsu from the ground and instructed it to keep watch over Obito.

Then he walked to the side and began sorting through the relics Uchiha Madara had left behind.

One of them, the Gunbai, was said to be crafted from the God Tree and had the ability to convert incoming ninjutsu into Wind Release counterattacks—a remarkable item. He wasn't sure if it could even reflect Truth-Seeking Orbs...

There was also a scythe forged from chakra metal, but since Kirin already had better weapons, he tossed it aside without much interest.

Of course, the most eye-catching among these, and also what Uchiha Kirin desired most, were the various Uchiha clan secret jutsu Madara had taken when he left Konoha.

The many Fire Release techniques needed no introduction. There were also a plethora of sealing techniques—some of which even included the curse mark engraved on Obito's heart...

Naturally, among them were many ocular techniques. But these weren't your standard Genjutsu-type Sharingan techniques. Rather, they were ocular jutsu simplified from Mangekyō techniques, similar in nature to "Genjutsu: Time-Space."

Without needing Mangekyō, some Uchiha with powerful three-tomoe Sharingan—or groups of clan members working in tandem over a long period—could release these techniques through extensive training!

This was the true foundation of a great clan!

If Madara hadn't taken all these precious legacies away back then, then during the Night of the Massacre...

Even if no one aside from Itachi and Obito had Mangekyō Sharingan, the clan might still have had a fighting chance to escape thanks to these simplified techniques.

But now, all of that had become meaningless in the face of Uchiha Kirin's overwhelming strength...

What truly interested him now was whether he could use these simplified Mangekyō techniques as a medium to develop true Mangekyō abilities—

Or perhaps even touch upon the rules that lay behind ocular jutsu, to catch a glimpse of the ancient deity from which they originated.

He also had another goal: to separate the Uchiha bloodline from the Ōtsutsuki lineage—

And raise its power to rival that of the Ōtsutsuki themselves. After all, the true origin of the Uchiha clan was a unique reincarnation of war-dead deities from the ancient era.

With three equally powerful bloodlines, Kirin would undoubtedly see a massive leap in power.

Because, at the end of the day, the very essence of this world is bloodline supremacy!

The Ōtsutsuki lineage gave its holders an instinctive ability to manipulate chakra, which in turn led to an endless array of ninjutsu.

As it evolved, it produced powers like the Rinnegan, Tenseigan, and even the tools that absolutely crushed lower lifeforms!

Just this alone put them far beyond what ordinary shinobi could achieve, even with a lifetime of training...

Then there was the bloodline of the Dragon, which granted Kirin a tremendously powerful physique—one that could ignore most physical and elemental attacks outright.

It even allowed brief survival within the Earth's molten core—or the surface of the sun...

It also gave him an affinity with natural energy, along with a heightened instinct for sensing and grasping rule-based power!

Uchiha Kirin couldn't wait to acquire a brand-new bloodline and savor the benefits it would bring!

"Ah, ah, ah, ah, ah!"

...

While Kirin was intently studying a scroll detailing the top-tier barrier technique Uchiha Flame Formation, the White Zetsu tasked with watching Obito suddenly let out a cry.

Though this White Zetsu couldn't speak, it was sufficient as an alert system.

Walking over, Kirin saw that Obito had been repeatedly eating the rotting corpses of bats, absorbing the nutrients to stay alive.

However, because the bat corpses were constantly being digested, nothing remained now but a puddle of brownish-yellow semi-solid mush—Obito lay soaked in it, instinctively swallowing it down.

"Keep going like this and you'll starve to death. Next time, don't bother reporting this kind of thing—just go find some dead rats or cockroaches in the cave to feed him."

Kirin used gravitational force to yank half of a fat rat from a crack in the rocks and demonstrated to White Zetsu how to feed Obito.

White Zetsu learned quickly and soon understood the process completely.

"Obito, Obito... I wonder what Rin would think if she saw you like this?

Hahahahahaha..."

Floating in midair, Uchiha Kirin looked down at him and laughed wildly.

Below, Obito's body was half-submerged in the yellowish sludge, roaring with rage—only to pause mid-roar to gulp down a few more mouthfuls...

One thought brings heaven. Another brings hell.

In both his past life and after transmigrating here, Kirin had either struggled for a living or trained desperately to survive. It had been ages since he laughed so freely and joyfully.

And all of it was thanks to one thing: power.

...

After spending a few days in the cave, balancing work and rest, Uchiha Kirin felt much of his fatigue had faded.

He didn't rush to interrogate Black Zetsu. Instead, he resealed him using the newly refined Uchiha Flame Formation, enhanced through the power of rules, and tossed him into the Divine Realm.

Meanwhile, he continued practicing the various Uchiha secret techniques—

And spent several days watching Obito struggle in the mud. Eventually, he grew bored of the show.

Fortunately, a new toy had arrived—one urgently in need of "restructuring." It would surely keep Kirin entertained.

A scouting ant clone infiltrating Root had sent back intel: Danzo was up to no good again.

Even after the mysterious disappearance of over a hundred Root shinobi, Uchiha Itachi being severely wounded, and a powerful figure claiming to be Uchiha Madara going missing, the old man still hadn't learned his lesson.

He was preparing once again to target the Uchiha clan.

"Time for a proper education!"

...

In the next instant, Uchiha Kirin appeared in Danzo's office.

Danzo, caught off guard while drafting plans, sprang up instinctively, drawing a kunai and shouting—ready to eliminate the intruding brat.

But before he could act, the Uchiha child before him gently waved a hand, suspending Danzo midair and preventing him from even molding chakra.

A deep, suffocating fear surged through Danzo's core.

What sort of inner world would an old shinobi have—one who had fought in three Shinobi World Wars, survived countless battles, earned the title "Darkness of the Shinobi World"?

Rich enough to... piss himself on the spot.

"Disgusting."

"Maybe I should just let you go mess with Hiruzen Sarutobi?"

Kirin looked at Danzo with disdain, already deciding how to deal with him.

"You are an eighteen-year-old girly boy, madly in love with Hiruzen Sarutobi. Say it."

"I am an eighteen-year-old girly boy, madly in love with Hiruzen Sarutobi..."

As the two locked eyes, Kotoamatsukami activated once again, turning the implanted idea into a permanent mental brand.

Thanks to the benefits of his powerful bloodline, Uchiha Kirin could now activate Kotoamatsukami once every three or four days.

If he intentionally restored his eye strength, he could even use it dozens of times a day...

As for whether this kind of behavior would attract the attention—or wrath—of the Sage of Six Paths, who watched over the world from the Pure Land...

And provoke him to descend upon reality and erase Kirin?

That seemed unlikely.

After repeated simulations and careful analysis of the original plot, Uchiha Kirin had already pinpointed the bottom line of the Sage of Six Paths:

The only value the Shinobi World held for the Sage of Six Paths was as a seedbed for cultivating Indra and Asura's reincarnations—plus as a mass-production facility for soul followers.

Even during simulations where Kirin killed Sasuke and Naruto multiple times, the Sage only showed up once—when Kirin obtained the fruit of Taiji Power.

(T/N: Taiji meaning 'source of the world'.)

All other times, it was just Indra or Asura's souls interfering—and they were laughably weak to Kirin.

Even in Boruto, when several Ōtsutsuki clansmen turned the Shinobi World into a battlefield, the Sage never appeared...

The only time he did was during a simulation where Kirin accidentally leaked the chakra fruit's aura after ingesting it—

Only then did the Sage of Six Paths intervene.

So, the conclusion was simple:

As long as Kirin didn't deliberately expose the existence of the fruit or block the flow of souls from the Shinobi World to the Pure Land for too long—

The Sage of Six Paths would never waste his increasingly limited remaining power to deal with a strong figure on par with the likes of Ryūchi Cave, Mount Myōboku, or other sacred sites.