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The Earth and Stone clone departed from Taki Ninja Village, carrying both the limbs imbued with Nanao's chakra and the collected Hero Water.
There was no massacre, no threat—Uchiha Kiyo had no concerns about the hookah and others revealing his whereabouts.
With such a significant amount of Hero Water obtained, it would take considerable time before he'd need to use the enriched natural energy around the Tree of Life again.
Instead of returning straight to the Land of Earth, Tushi's destination was Qing Island.
His chakra had now reached level 80, and utilizing full power, he could teleport himself from the Ninja mainland to Qing Island using the Body Flicker Technique without revealing the location of the island.
Frequent trips no longer posed a risk of exposing its hidden coordinates.
Upon arriving at Qing Island, Earth and Stone had multiple tasks.
Beyond delivering the chakra fragments of the Seven-Tails and Eight-Tails and the Hero Water to the main body, another crucial objective was updating the Shadow Clones.
Although the chakra reserves of the clones were sufficient, the memory load presented a growing risk.
Even with the clones periodically syncing memories with the main body, prolonged time caused chakra divergence.
Over time, the changes in chakra between clone and original become increasingly dissonant, which could create a backlash when the clone is dispelled.
As a preventive measure, Uchiha Kiyo set a strict rule: each Shadow Clone must be replaced every two years.
The Earth and Stone clone, along with others, hadn't been refreshed for nearly three years.
The resulting divergence, particularly the chakra shifts due to elemental affinities like Ice and Wood, had grown pronounced.
Clone replacement had become urgent.
This trip's purpose was clear.
Not only would Earth and Stone's clone be updated, but he would also take away several of Uchiha Kiyo's other clones, replacing them with new ones.
Even though Uchiha Kiyo had awakened the MangekyĹŤ Sharingan and his soul had improved considerably, enduring the chakra conflict caused by three years of divergence posed a genuine risk.
Had his recent MangekyĹŤ evolution failed, things might have ended tragically.
Reflecting on his carelessness, Uchiha Kiyo swore to himself.
Never again. Absolutely never again.
"We'll set aside the Seven-Tails and Eight-Tails' chakra for now. Bloodline limit studies aren't as fruitful currently.
As for the Hero Water, assign two clones to research it daily. That should suffice.
Once we decipher its inner principles, both I and the clones are bound to experience a chakra breakthrough."
Uchiha Kiyo's eyes gleamed at the thought of chakra breakthroughs.
In the past two years, with the Thunder Release body-forging technique, his efficiency in tempering his body had improved drastically.
His chakra levels had surged past 150 units.
He was nearing one-twentieth of a Tailed Beast's chakra capacity.
With preparations in place to mitigate the disbandment impact, Uchiha Kiyo dismissed Earth and Stone's Clone No.1 and No.2, absorbing their memories.
Memory assimilation itself wasn't a problem anymore.
Uchiha Kiyo's mental resilience had evolved to the point where absorbing thirty clones' worth of memory posed no threat.
However, the chakra discord—between the old clone's chakra and his current reserves—was jarring.
Even though they shared the same origin, the chakra shift over three years had grown wide enough to cause backlash.
Combined with memory assimilation, Uchiha Kiyo barely managed to stay upright.
Thankfully, the two clones had drained most of their chakra just before being dismissed, reducing the backlash considerably.
"From now on, every clone must be refreshed at the two-year mark. No exceptions."
Since Chakra Source was no longer required for identity masking, Uchiha Kiyo went with a straightforward approach.
He separated ten Shadow Clones, each holding approximately a dozen chakra units.
Two were sealed into Earth and Stone directly, while the remaining eight were sealed for later use.
"The clone updates are your task now," he told Earth and Stone.
"Before each update, signal me so I can prepare. Also, share some of this Hero Water with them. It's rich in natural energy—over half purified.
They can use it to practice fusing Senjutsu chakra."
Fusing Senjutsu chakra required precise control and specific ratios tailored to each individual body.
Though Uchiha Kiyo had mastered the general method, each clone had slight differences, meaning adjustments were necessary—similar to how their Secondary Chakra once worked.
With Hero Water as a base, the clones could refine their fusion process rapidly.
Granted, using the Hero Water like this seemed a bit ruthless…
But glancing at the massive supply he had now, Kiyo's guilt conveniently faded.
"Understood," Earth and Stone responded firmly.
The clone's Secondary Chakra had been depleted during the initial high-speed arrival.
After meditating and recovering his chakra, his total capacity had increased further.
Chakra capacity was restricted by both body and soul.
Over time, as clone-soul synchronization declined, the main body's soul growth contributed less to clone chakra limits—one more reason for timely updates.
Thanks to Uchiha Kiyo's recent spiritual surge from awakening the MangekyĹŤ, his chakra had surged, yet the older clones hadn't reflected that growth.
Updating the clones would recalibrate their compatibility, raising their limits significantly.
Earth and Stone's new clone, freshly synced to Uchiha Kiyo's spiritual state, instantly displayed ten additional chakra units—a clear sign of improved synchronization.
The other clones would likely experience similar gains.
Once chakra was restored, Earth and Stone departed Qing Island using the Instant Body Technique.
Instead of returning to the mainland point of origin, he traveled to the northern shores of the Land of Rainbow.
This location had previously been arranged as a designated transfer zone by Uchiha Kiyo.
Now alone, Uchiha Kiyo turned his focus to the Hero Water.
Since the clones would be occupied updating over the next few days, their research duties would be temporarily paused.
In the meantime, Kiyo needed to keep himself busy.
Analyzing Hero Water firsthand seemed like the perfect task.
Even without dissecting its inner principles, measuring its natural energy concentration alone was a worthwhile endeavor.
How much natural energy existed in a single drop of Hero Water?
Drawing one drop from storage, Kiyo could immediately sense the dense natural energy inside.
It far exceeded his expectations.
Activating Yang Yuan Gong, he constructed a channel to absorb the Hero Water into his abdominal chakra model, beginning the refining process.
The natural energy content within the Hero Water was staggering.
The resulting Senjutsu chakra from just one drop was twice the amount he had refined when awakening his MangekyĹŤ Sharingan.
And since this energy had been partially purified by the Tree of Life, it was far more concentrated than typical sources—comparable to food energy, yet multiple times denser.
Based on the violent feedback of the Senjutsu chakra, Uchiha Kiyo estimated the Hero Water had been purified by at least two-thirds.
It was safe to say the Hero Water was directly absorbable, albeit dangerous, and could drastically enhance a ninja's chakra.
Taki Ninja's method of consuming it—simply drinking it without regulation—was extremely crude, leading to unpredictable consequences.
Uchiha Kiyo, on the other hand, possessed precise control.
Not only could he sense natural energy, but he could also manipulate it directly.
"It might be possible to absorb it slowly, little by little."
The thought surfaced suddenly and refused to leave.
Directly nourishing the body with natural energy was something Kiyo had long sought after.
Yet until he reached the "Innate Return" stage, achieving this with ambient energy was nearly impossible.
The Hero Water offered a shortcut.
Even though body energy was just a diluted form of natural energy, the concentration in Hero Water was considerably higher.
Directly applying it to the body might yield significantly better nourishment.
Using refined Senjutsu chakra, Kiyo extracted about one percent of a drop's natural energy.
Applying the Self-Cultivation Technique, he sealed this fragment into his right arm, then gradually released it.
The energy flowed gently into his cells.
His body responded.
Cellular activity surged, strengthening the tissue.
It felt similar to the effects of prolonged Yang Yuan Gong training—but even more potent.
"If standard training feels like reaching 70% fullness, then this… this is over 90%.
There's even a sensation of 'overflow.'"
And yet—no side effects.
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