Chapter 92: A New Vessel
When Nan absorbed Uchiha Han, he also inherited all of Han's abilities.
Some of those powers overlapped with his own—such as the basic Sharingan and certain chakra nature transformations.
Han's chakra attributes were Fire, Earth, and Lightning, with Fire being his strongest, Earth second, and Lightning his weakest.
After absorbing him, Nan discovered that he now possessed four chakra natures: Fire, Lightning, Water, and Earth.
Fire remained his strongest.
Lightning, however, had surged to nearly the same level—something that puzzled him.
Water and Earth trailed behind, almost equal in strength, with Earth matching Han's original level exactly.
Nan deduced that his own innate attributes had originally been Fire, Lightning, and Water. Earth came from Han, while Water had already been his. Since each possessed one nature the other lacked, their fusion didn't enhance them further—they simply remained at their original levels.
Yet because both he and Han were Uchiha prodigies, their combined Fire Release talent reached an extraordinary height. Fire was the Uchiha clan's signature nature, after all. But to Nan's surprise, his Lightning Release was now just as powerful as his Fire, something unheard of.
Han's Lightning Release had been the weakest of his three elements, far inferior to his Fire. Nan's Lightning had been stronger, but as an Uchiha, it was still unlikely to surpass Fire. So why now?
Nan reasoned that this was because human talent had natural limits. His Fire Release, after merging two Uchiha geniuses, had already hit the ceiling of what a human body could handle. Any excess talent beyond that was wasted, unable to manifest. Meanwhile, his Lightning Release—already exceptional—rose to the same limit after fusion, thus matching his Fire.
The same principle applied to their eyes. Both possessed Mangekyō Sharingan, so even their base Sharingan carried far greater ocular power than ordinary clan members. When their Mangekyō fused into an Eternal Mangekyō, the residual strength of their regular Sharingan eyes skyrocketed to terrifying levels.
Nan had long noticed that his genjutsu techniques, though mediocre on paper, worked with astonishing ease in actual practice. He could hypnotize or control others almost effortlessly. Some of this was thanks to his own formidable spiritual energy—but much of it came from his Sharingan's overwhelming ocular power. And just like with his Fire Release, there was so much excess that the eyes themselves could not channel it all.
The first time Nan used Formless Reincarnation: Implantation, he realized he could permanently transfer a portion of his abilities into another vessel. At that time, he had accidentally reincarnated into a tree, so he never got to test it properly.
But since then, he had wondered: Could he offload some of his excess Sharingan and Fire Release potential into his next vessel?
So, when he implanted his will into Yakushi Kabuto, Nan deliberately began siphoning off fragments of his ocular power and fire affinity, feeding them into Kabuto's body. All the while, he monitored himself closely—ready to stop the instant his own strength declined noticeably.
For Fire Release, he wasn't concerned. What he transferred was only talent. He had already mastered it to the jōnin level, and even if his progress slowed slightly, it didn't matter. He could always replenish himself later—absorbing others if necessary.
Now, gazing at Kabuto's slumbering form, Nan saw with his own eyes the result: a pair of three-tomoe Sharingan glimmering faintly in the boy's sockets.
The reincarnation had worked.
Nan checked his own condition carefully. His ocular power had diminished only slightly, almost imperceptibly. For someone who already wielded two pairs of Mangekyō Sharingan, the difference was negligible.
After all, if there was ever an opponent he couldn't defeat now, even at full strength, no amount of "extra" Sharingan energy would make a difference.
This only proved how monstrous the combined ocular power of Uchiha Nan and Uchiha Han truly was.
Nan had given away just enough of his power for Kabuto's body to awaken a full three-tomoe Sharingan, and he'd done so without suffering any meaningful loss himself.
Once the Formless Reincarnation succeeded, Nan's own Mangekyō eyes reverted to their normal three-tomoe form. He studied Kabuto carefully.
Kabuto slowly sat up, staring back at Uchiha Nan.
It was a bizarre sensation. Two pairs of eyes locked onto each other, yet Nan's mind simultaneously processed both perspectives. Whether he looked through his own body or Kabuto's, there was no strain, no sense of being split in two.
Unlike ordinary shadow clones, this was seamless. After all, each body was being driven by its own brain. Formless Reincarnation had merely overwritten Kabuto's consciousness with Nan's will and linked their minds together.
Nan already had experience with this. His first experiment had been with a tree—though the tree couldn't think, the chakra link allowed Nan to sense everything in its vicinity.
That tree had unexpectedly boosted his perception to an absurd degree. Through it, he could monitor the entirety of Konoha as though the village lay in the palm of his hand. Even now, standing on a distant battlefield in the Land of Wind, he could still sense the tree's surroundings instantly, without the faintest delay.
Kabuto's new body was clearly bound by the same connection. Nan suspected the principle resembled quantum entanglement—no matter the distance, there would be no lag.
After observing from both perspectives for a while, Nan noticed something peculiar.
His own Sharingan was immensely powerful, able to pierce the darkness of night with ease. Yet Kabuto's Sharingan… saw even more clearly.
That shouldn't have been possible. Kabuto's eyes only carried the strength of an ordinary Uchiha's three-tomoe Sharingan. They should have been weaker, not sharper.
Alarmed by the thought, Nan had Kabuto lift the tent flap and gaze into the distance—only to realize the boy couldn't see a thing beyond five meters.
"…What?"
Sharingan eyes should grant vision far superior to a normal human's. Yet here, Kabuto was nearly blind at range.
Then Nan had Kabuto put on his spectacles. Immediately, the world snapped into clarity—though everything appeared slightly smaller, the Sharingan's focus corrected it without issue.
That's when Nan remembered: Kabuto was severely nearsighted.
In his previous life, Nan himself had been the same. Years of relentless study had ruined his eyes. He could see close objects with sharp precision, but anything distant blurred into nothingness. The cause was simple—elongated eyeballs absorbed more light, but distorted the focal length. Physics didn't change, even in this world.
During the transfer of power, the Formless Reincarnation had subtly reshaped Kabuto's body and eyes to better handle Sharingan's strain. But it hadn't fixed his myopia.
The Uchiha clan had never produced a near-sighted member before. Their powerful ocular prowess meant they rarely strained their eyes to begin with. Vision only deteriorated later, with the toll of the Mangekyō—or in rare congenital cases, like Sarada in Boruto's era.
And so, with this accident, Yakushi Kabuto—now bonded to Nan—became the very first nearsighted wielder of the Sharingan.
A hidden honorary Uchiha, and a historical first.
Congratulations to the Uchiha clan on their latest… spectacle.