At this moment, following the doubt voiced by Hiruko, within the room, even Sasori—though not a specialist in the biological field—knit his brows slightly, showing a hint of bewilderment.
When one's erudition reaches the upper limit of a single domain, one will discover that the underlying principles of many things are interconnected. The requirement to cultivate the "Tenseigan"—the ultimate form of the Byakugan Kekkei Genkai that Hyuga Yu spoke of—was as preposterous as constructing a perpetual motion machine when analogized to the field of engineering dynamics.
Based on Hyuga Yu's description of the project during their journey back to the village, a complete Tenseigan ought to simultaneously incorporate the ultimate expression of the powers of seven elemental natures—Wind, Fire, Earth, Water, Lightning, Yin, and Yang—while causing these seven attributes to achieve a perfect, self-sustaining cycle within a single pair of eyes. Every nature-transformed jutsu unleashed would be able to perfectly blend with one another, forming a "one plus one is greater than two" effect akin to Kakuzu's Earth Grudge Fear composite ninjutsu like Searing Migraine or False Darkness—or rather, it needed to achieve a "one plus one is greater than seven" magnitude.
Yin-Yang Release jutsus, the manipulation of attractive and repulsive forces, the spatial control to create celestial pathways, the Spirit Orbs, chakra absorption, bestowing life force upon inanimate matter, and the five ultimate forms of power corresponding to the five basic elemental attributes, including the Golden Wheel Reincarnation Explosion.
Setting aside how to engineer such a massive array of abilities, merely stuffing the colossal volume of chakra required to manifest these powers into a single vessel would be enough to violently burst a Tailed Beast alive.
Compressing such a massive quantity of energy into a pair of Byakugan that could be pierced through with a ordinary kunai would clearly yield only one result—the Byakugan would instantly melt amidst the immense energy.
However, at this time, Hyuga Yu was in no rush to refute Hiruko. Instead, he made a move—raising his right hand, he condensed the written kanji for "Fire" upon the tips of his five fingers, and then pressed them against his own face.
"Five Elements Seal: Fire Seal—Release."
As this action was performed, the flame-like insignia at the center of Hyuga Yu's brow slowly faded.
Immediately following that—
Boom!
A terrifying wave of chakra that induced an instinctive unease instantly surged forth from within Hyuga Yu's eye sockets!
In the blink of an eye, the pristine white eyes within Hyuga Yu's sockets reconnected with his physical body, instantly commencing their evolution toward the direction of the "Tenseigan embryonic matrix"—
The pure white color was rapidly dyed an azure-teal hue. Subsequently, a pattern resembling a white sun manifested from the center of his pupils. This pair of cyan-white eyes looked practically like the most magnificent gemstones in the world!
Then, pop~
Hyuga Yu raised his hand and executed the Healing Resuscitation Regeneration Technique, smoothly extracting this pair of "Tenseigan embryonic matrices" right before the eyes of Hiruko and the other two.
He closed his eyes. Very quickly, a pair of ordinary Byakugan regenerated within his sockets. Before this pair of ordinary Byakugan could begin to evolve once more, he utilized his Fire Release Tenseigan chakra to execute a sealing jutsu, sealing them once again.
Hyuga Yu opened his pristine white eyes, looking at Hiruko and Sasori—who both wore thoroughly horrified expressions—and spread his hands open—
Within his palms, that pair of "Tenseigan embryonic matrices" shimmering with an azure-white luster was revealed before everyone.
"As you can see, if I do not impose restrictions, this pair of eyes will immediately integrate with my body, transforming into an alternative, even stronger state."
"Under this state, an ordinary Byakugan will acquire dynamic vision, allowing one to see more clearly and look significantly further."
"However, approximately ten hours later, once the 'ocular power' contained within these eyes is depleted, they will revert back into ordinary Byakugan."
Hyuga Yu retrieved a glass flask from a nearby lower bookshelf—originally used to preserve the fragments of Hidan—and walked over to the adjacent laboratory to pour in some physiological saline. He dropped his pair of eyes inside to preserve them, and then, completely unconcerned, tossed this pair of "Tenseigan embryonic matrices" directly to Hiruko, who was seated behind the office desk.
Hiruko was still caught in the shock of Hyuga Yu extracting his own eyes. He frantically caught the glass flask, looking at the pair of magnificent cyan-white eyeballs soaking inside like exquisite jewels. He couldn't help but widen his eyes slightly, appearing somewhat dazed. He found it hard to believe—presently, the eyes of the strongest Tennin of the Hyuga clan were actually held so easily within his own hands?
"This is... the Tenseigan? No, it's a Byakugan evolving toward the Tenseigan?"
Hyuga Yu nodded, looking at the three of them. "Now, can you comprehend it?"
"Comprehend what?" Hiruko lifted his head blankly.
Right at this moment, Sasori, who was standing to the side, narrowed his eyes. Looking at the "Tenseigan embryonic matrix" in Hiruko's hands, he spoke with considerable astonishment: "What you mean to say is—"
"The key that causes the Tenseigan to emerge is not the eyes themselves? The key to making your eyes undergo this bizarre transformation is actually... your physical body?"
"You could put it that way." Hyuga Yu cast an appreciative glance at Sasori, continuing his explanation. "Before completing the ultimate evolution, a Byakugan remains fundamentally just a Byakugan. Even if it acquires the characteristics of a Tenseigan, once this power is extracted, it will still degenerate into an ordinary Byakugan."
"What makes a Byakugan become a Tenseigan does not lie in the strength of the eyes from the very beginning, but rather in the specific chakra possessed by the individual who bears the Byakugan—or in other words,"
"The lineage."
Just like in the original storyline of The Last: Naruto the Movie, after being beaten out of the Tenseigan Chakra Mode by Naruto Uzumaki, Toneri Otsutsuki's Tenseigan dissolved into motes of chakra light and dispersed, ultimately degenerating back into Hanabi Hyuga's pair of ordinary Byakugan. Within Toneri Otsutsuki's body, the Tenseigan was merely an external manifestation produced when the Tenseigan chakra refined from his complete Otsutsuki lineage combined with the Byakugan. From this perspective, Toneri Otsutsuki had never obtained a genuine Tenseigan.
He was merely capable of utilizing the power of the Tenseigan, rather than genuinely evolving Hanabi Hyuga's pair of Byakugan into a true Tenseigan like the colossal Tenseigan on the moon.
It could even be said that although he fought with flashy, heaven-and-earth-shaking maneuvers, Toneri Otsutsuki from beginning to end never truly displayed a Tenseigan of the same caliber as the Rinnegan, or its genuinely broken, rule-bending capabilities.
Prior to that, the force he utilized to propel the moon toward the Earth was also derived from the giant Tenseigan on the moon rather than the pair of Byakugan he had plundered from Hanabi Hyuga.
"So, my method of understanding was erroneous from the very beginning?"
At this point, Hiruko finally snapped back to reality. He cast a glance at Hyuga Yu's eyeballs in his hands, then lifted his head to look at Hyuga Yu, frowning as he said: "However... if it is according to your narrative, my understanding shouldn't have been flawed."
"You were not wrong." Hyuga Yu could roughly deduce the direction of Hiruko's thoughts. "It is just that, to realize the point you mentioned, we must master a compression technology that surpasses all existing forbidden techniques in the current shinobi world. That is something to be accomplished at the very end. Furthermore, given our existing level of technology, we are far from adequate."
According to the criteria laid out by Hyuga Yu, what he desired was fundamentally not a temporary Tenseigan that would degenerate, but a pair of God's Eyes that genuinely completed their evolution and solidified that majestic power capable of reshaping the world—much like that colossal Tenseigan on the moon.
Calculated based on this direction, what Hiruko mentioned regarding how to compress that terrifying magnitude of energy into a pair of ordinary Byakugan was precisely one of the greatest difficulties of this project.
The method the Otsutsuki on the moon utilized to accomplish this was—
Fusing an ultra-colossal volume of Byakugan to manufacture a giant Tenseigan.
Evidently, they succeeded. However, a problem arose as well—an eye of such massive proportions simply could not be stuffed into anyone's eye sockets, and it was exceptionally difficult to mobilize. It could only sit there like a glass cannon.
In the future, Hinata Hyuga and Naruto Uzumaki would team up to forge a Rasengan and blow it apart, rendering it completely devoid of universal applicability.
On the other hand, Hyuga Yu currently possessed the conditions to manufacture a giant Tenseigan—and a giant Tenseigan completely devoid of side effects at that. Given his attainment in Yang Release, he could regenerate ordinary Byakugan virtually without limitation.
Merely by continuously gouging out his own eyes, Hyuga Yu could amass the required quantity of ordinary Byakugan to manufacture a giant Tenseigan. Furthermore, these were all his own eyes; once fused, they would not suffer from the Yin Release side effects of the moon's giant Tenseigan, which compounded the spiritual energy of countless individuals.
Yet, another problem presented itself—Hyuga Yu possessed an abundance of Byakugan, but he lacked the specific technology to manufacture a giant Tenseigan using these eyes.
To acquire the technology, he would need to plunder it from the Otsutsuki on the moon; to plunder it from the Otsutsuki on the moon, he required a Tenseigan at the very least; and to manufacture a Tenseigan, he required the technology of the Otsutsuki on the moon.
This effectively trapped Hyuga Yu inside a paradox.
Furthermore, after the incident where the branch house annihilated the main house among the Otsutsuki on the moon, whether the technology to manufacture the giant Tenseigan still existed was also a question. Consequently, Hyuga Yu could not place the entirety of his hopes upon the Otsutsuki on the moon. He had to seek an alternative, superior technology to cultivate the Tenseigan from the myriad of existing techniques within the shinobi world!
At this time, Hyuga Yu walked up to the small blackboard in the office, picking up a piece of chalk. He turned his head toward Hiruko and Sasori, speaking flatly: "Cultivating a genuine, everlasting Tenseigan that conforms to the dimensions of a human eye is an ultimate project that requires integrating the strength of countless scientists and researchers across the shinobi world to push forward collectively."
"As for right now, what I require is not that type of ultimate weapon, but rather a more direct form of power."
"Therefore, I have divided this plan into three phases."
"Three phases?" Hearing this, Hiruko and Sasori followed Hyuga Yu's train of thought, both comprehending his logic, and inquired: "What do you plan to do?"
Hyuga Yu raised his palm slightly. The repulsive force of Almighty Push meticulously wiped away the entirety of the dense, derived formulas originally covering the blackboard. He raised his hand to sketch a simple diagram of human anatomy on the board, followed by sketching another human anatomical diagram on the adjacent side. Afterward, Hyuga Yu disclosed a secret of the shinobi world to the three individuals present: "The solitary God, in pursuit of stability, separated into the dual poles of Yin and Yang. The opposing poles interacted with one another, giving rise to all things in creation."
"To a greater or lesser extent, you have all heard that the power of shinobi originated from the more distant Ninshu, and the power of Ninshu originated from the Sage of Six Paths who created the world."
"The descendants descended from the Sage of Six Paths gradually evolved into the myriad shinobi clans of the current shinobi world. Among them, the most exceptional and powerful are the Uchiha clan, who inherited the Sage's Eyes, and the Senju clan, who inherited the Sage's Body. Aside from them, the Uzumaki clan, as distant relatives of the Senju clan, also inherited a portion of the Sage's Body's power."
"When one fuses the power of the Sage's Eyes and the Sage's Body, one can catch a glimpse of a portion of the solitary God's majestic power. This specific point has been passed down within the records of the Uchiha clan as a terrifying forbidden technique—"
Hyuga Yu paused, adopting a solemn expression as he spoke: "Izanagi."
"That is the ultimate genjutsu capable of reversing even life and death!"
Hearing this, Hiruko was slightly startled, his voice vibrating as he said: "Could it be that you wish to rely on my Chimera Technique to fuse the power of the Sage's Body and the Sage's Eyes to acquire the divine power of the Sage of Six Paths?"
"However, I have attempted this before..."
As an expert specifically researching the fusion of Kekkei Genkai powers, Hiruko naturally understood which Kekkei Genkai were strong and which were weak. He had naturally attempted to fuse the genetic material of several of the strongest shinobi clans in the world before, but without exception, all attempts had failed.
"I am aware."
At this time, Hyuga Yu interrupted him. "What I intend to address is not the common ancestor of the Uchiha and Senju clans, the Sage of Six Paths."
"Through my interpretation of various ancient texts belonging to the Hyuga clan, I ultimately discovered that the so-called solitary God in the legends was not the Sage of Six Paths. The Sage of Six Paths was merely one of those dual poles of Yin and Yang; he also possessed a brother."
"And that individual was the ancestor of the Hyuga clan, the Sage Hamura."
"Much like the Uchiha and Senju, among the numerous shinobi clans in the current shinobi world, the descendants of the Sage Hamura gradually evolved into two primary lineages of shinobi clans."
"The Hyuga clan, who inherited the Sage's Eyes, and the Kaguya clan, who inherited the Sage's Body."
"The Hyuga clan obtained the Sage's Eyes—the power of the Byakugan; meanwhile, the Kaguya clan obtained the bone-manipulating power of the Shikotsumyaku from the Sage's Body."
"By combining the Hyuga and Kaguya, the power of the Byakugan and the Shikotsumyaku, it becomes possible to manifest the divine power of the Sage Hamura once more!"
Speaking up to this point, Hyuga Yu had already sketched seven simple human structures on the blackboard, constructing a tree diagram to label the seven bodies individually. Belonging to the lineage of the Sage of Six Paths were the Uchiha, Senju, and Uzumaki.
Meanwhile, belonging to the lineage of Hamura were the Hyuga and Kaguya.
Looking at the diagrams on the blackboard and integrating them with Hyuga Yu's words, Sasori's heart stirred slightly. His gaze fell upon the blank space residing above the "Sage of Six Paths" and the "Sage Hamura," his pupils contracting slightly. A spine-chilling sensation suddenly welled up within his mind. "Tennin, could your meaning imply... that the Sage of Six Paths and the Sage Hamura merely operated as the dual poles of Yin and Yang, and above these two poles... there still existed a genuine 'solitary God'?"
At this time, Hyuga Yu sketched an eighth simple human structure on the blackboard, placing a "?" above it before turning around. As a transmigrator, he naturally knew that the final eighth figure represented Kaguya Otsutsuki. However, since natives of the shinobi world like Sasori and Hiruko were unaware, he utilized this method to facilitate their comprehension.
"Precisely."
"The pedigree is correct, and the sequence is correct. Only the fusion of top-tier lineages within the shinobi world can achieve a fated 'equilibrium.' This is also the fundamental reason why Hiruko's Chimera Technique failed previously."
Hearing this, Hiruko looked at the eight human figures upon the blackboard, his breathing abruptly turning rapid as the gaze he directed toward Hyuga Yu grew increasingly fanatical. "Then, this... could this be—"
"The ultimate formulation for that Chimera Technique in your possession?"
"Exactly."
Hyuga Yu nodded. Only after laying out this point did he begin the genuine interpretation of the plan: "Therefore, the first phase of our Foundation's project is: analyzing the Kekkei Genkai of Hamura's lineage!"
"Accomplishing the Kekkei Genkai fusion of the Hyuga and Kaguya to obtain what has remained unmanifested in the current era—"
"The second type of Sage Body!"
————
Supporting me on Pa-treon to gain early access to advanced chapters and enjoy expedited updates. Your support is greatly appreciated.
pat-reon .c-om/Dragonhair
(Just remove the hyphen - and space, to access Pa-treon normally.)