Chakra is the power born from the combination of one's spiritual energy and physical stamina.
Although immensely powerful, chakra still falls short compared to the raw might of natural energy.
Natural energy is a primordial force—free and ever-present between heaven and earth. It is the pure essence of the world, existing since the dawn of creation.
The Ōtsutsuki clan traveled to various worlds, planting God Trees that absorbed the energy of the planet itself—natural energy. In turn, these trees would bear chakra fruits—condensed forms of pure, high-density natural energy.
In essence, the chakra fruit consumed by the Ōtsutsuki is a compressed, concentrated source of this ancient power.
If one could convert their own chakra into pure natural energy, it would raise their overall energy level dramatically—enhancing every aspect of their abilities.
This was the origin of Sage Mode on the ancient Shinobi Continent.
The sages of old created Senjutsu Chakra—a blend of natural energy, spiritual energy, and physical energy.
Three great sacred places emerged as the pinnacles of this training: Mount Myōboku, Ryūchi Cave, and Shikkotsu Forest.
Upon entering Sage Mode, a shinobi's power increases drastically. Ninjutsu, taijutsu, even genjutsu—every technique is enhanced beyond its normal limits.
Even the Ten-Tails' God Tree was vulnerable to such power.
A ninja who masters Sage Mode transcends the capabilities of ordinary shinobi.
However, mastering Sage Mode is not easy.
The first requirement: massive chakra reserves.
To create Senjutsu Chakra, the three energies must be harmonized perfectly. It's a delicate balance.
Inhale too little natural energy, and the transformation won't occur. Inhale too much, and the balance breaks—your body becomes stone, overtaken by nature itself.
At this moment, Naruto sat cross-legged on the ground.
He recalled everything he'd learned about Senjutsu, Sage Mode, and the nature of natural energy.
The memory was vivid—his understanding of the world around him unparalleled.
And then, he saw it.
The natural energy floating between heaven and earth.
He had realized Sage Mode.
Sage Mode Activated: All abilities—ninjutsu, taijutsu, genjutsu, perception—are significantly enhanced.
In an instant, Naruto felt the shift.
By simply willing it, natural energy rushed into him from all directions.
A bright aura surrounded him as the transformation completed.
Orange pigmentation formed around his eyes, highlighting a pair of vibrant, sky-blue irises—sharper than ever.
Unlike the version of Sage Mode taught at Mount Myōboku, Naruto had attained it through pure self-cultivation.
As a result, his eyes retained their human form—no toad-like pupils.
His body surged with strength.
His chakra capacity expanded. His techniques grew more powerful. His senses were razor-sharp.
In that moment, Naruto opened his Kagura's Mind Eye—a powerful sensory ability.
Using it alongside his newfound perception, he was shocked.
He could sense everything.
The entire Hidden Leaf Village.
Konoha was no small village—it was the largest shinobi stronghold in the world.
And he could perceive it all.
Even Naruto was stunned.
But before testing his newly enhanced ninjutsu, he exited Sage Mode.
Eyes closed, he shifted his awareness inward.
Within his mindscape—the place where the Nine-Tails was sealed—Naruto appeared once more.
Kurama barely glanced at him. The fox was already used to Naruto coming and going.
Snacking on a bag of chips and reading a book, Kurama didn't even greet him.
Naruto didn't care.
He found a quiet space, sat cross-legged, and concentrated.
He began channeling natural energy again.
In the next instant—
Sage Mode: Activated.
Feeling the senjutsu chakra swirling inside him, Naruto didn't hesitate.
He extended his palm and unleashed it:
Wind Style: Rasenshuriken!
The spiral sphere spun into existence—sharpened, swirling winds howled from its form.
The sheer energy caused vibrations to echo through the sealed space.
Kurama paused and looked over.
Something was different.
He could tell immediately:
Naruto had truly entered Sage Mode—on his own.
The Nine-Tails was nearly shocked—almost.
He stared at Naruto, stunned that a mere brat had managed to master Sage Mode. But then, he paused and thought again.
What hasn't this kid done by now?
At this point, there was hardly anything that could genuinely surprise Kurama.
Still, curiosity tugged at the beast.
What is he planning this time?
His sharp, slitted eyes remained fixed on Naruto.
At that moment, Naruto held the Wind Style: Rasenshuriken in his palm. With calm precision, he began channeling Senjutsu Chakra into the technique.
Within seconds, a change occurred.
The Rasenshuriken—normally a brilliant sky-blue—shifted.
Now, it glowed with a nearly white-hot intensity.
A powerful aura radiated from it. So intense, even Kurama felt a faint sense of danger.
"Senjutsu...! That little brat actually fused natural energy into a jutsu!" Kurama muttered, eyes wide.
Naruto stared at the transformed Rasenshuriken in awe.
He could feel it—raw, overwhelming power.
This version of the jutsu was several times stronger than before.
Without hesitation, he turned toward the darkness at the edge of the sealed space and hurled the Senjutsu-enhanced Rasenshuriken.
BOOM! BOOM! BOOM!!!
The enhanced Rasenshuriken whirled forward, howling through the air like a divine wind.
It disappeared into the black void—then exploded in a cataclysmic blast that shook the entire seal world.
Winds raged.
The space trembled.
Even Kurama looked up, mildly impressed.
Naruto stood there, grinning. He felt the power.
He was satisfied.
But not for long.
This is just... the standard Sage Mode.
For Naruto Uzumaki, that wasn't enough.
He knew this could go further.
From that day onward, Naruto trained relentlessly—attending school by day, researching Sage Mode by night.
His goal?
Evolution.
To push Sage Mode beyond its natural limits.
Two months passed.
And then, he succeeded.
Naruto had achieved something unheard of—he transformed Sage Mode from a time-limited technique into a sustainable state.
This was the birth of:
"Normalized Sage Mode."
A perfected version of Sage Mode with no time constraints. As long as he had chakra, he could remain in Sage Mode indefinitely.
And Naruto—being a member of the Uzumaki clan, already had monstrous chakra reserves.
Combined with his massive spiritual energy and enhanced physique—augmented by the mysterious Ryumyaku Immortal Thief Technique—his chakra capacity had already reached Tailed Beast levels.
In short:
Naruto's chakra pool was virtually limitless.
Unless he chose to exit Sage Mode, no force could strip it from him.
And yet—even at that level—Naruto wasn't satisfied.
He could still feel it:
A flaw.
"Even with Normalized Sage Mode… I still have to transform natural energy every time I use it."
He needed to constantly absorb nature energy, mix it with his own spiritual and physical energy, and refine it into Senjutsu Chakra.
That transformation step was still a bottleneck.
Naruto's mind wandered back to the xianxia novels he used to read—fantasy tales of cultivators absorbing the energy of heaven and earth directly, evolving into immortals.
"Isn't this the same? If I could skip the chakra system entirely…"
A bold idea took root.
"What if I create my own immortal cultivation method—no more chakra, just direct absorption of natural energy?"
"What if I could refine and control the energy of the world itself?"
If he could do that…
He would possess an infinite energy source.
The path forward was clear.
Naruto wasn't just trying to master Sage Mode anymore.
He was aiming to become something greater.
A true immortal.
...
TN:
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