A Transmigrator’s Story in the Hyuga’s Main Branch

Seizing this brief window of opportunity created by his daring counterattack, Hikari was acutely aware that the Patriarch had momentarily gained the upper hand by absorbing a substantial portion of his entire upper body's freely circulating chakra.

In a critical bid to level the playing field again quickly and seize this 'breathing space', Hikari tapped into his deep knowledge of medical ninjutsu, Gentle Fist-like chakra control fundamentals, and the precise internal vision provided by his Byakugan and training of it.

With remarkable speed and finesse, he began the intricate process of gently unsealing the tenketsu points across his upper body from the inside.

This required an exceptional level of chakra control and an intimate understanding of the body's chakra vessels and coils, skills Hikari had honed over years of dedicated practice.

Simultaneously, as his hands came back into action, Hikari employed Yang Release to infuse those same inner chakra vessels with renewed vigor, to heal them and 'boost' their short-term chakra energy intake at the same time.

This not only hastened their ability to replenish chakra from his cells but also revitalized his ability to generate and manipulate it effectively next.

The use of Yang Release in this manner was a strategic move, aimed at restoring his combat capabilities as swiftly as possible under the circumstances.

This dual approach—unsealing his tenketsu points while rejuvenating his chakra reserves—underscored Hikari's innovative spirit and his mastery over a wide range of shinobi arts. 

The effectiveness of Hikari's tactics was evident in the renewed energy that coursed through him, allowing him to prepare for the next phase of the duel.

As the dust from their intense clash began to settle, the Patriarch, with his Byakugan fully activated, widened his eyes in astonishment at the sight before him.

Witnessing Hikari's adept manipulation of his chakra to gently unseal his tenketsu points from within his chakra pathway system itself, along with his innovative use of Yang Release to revitalize those same pathways, left the elder deeply impressed. It was an approach and a form of resilience he had never seen before, prompting him to voice his admiration.

"Hikari-kun, your abilities, and the extensive arsenal you possess are both truly remarkable... You have reached the peak among Hyuga in terms of ingenuity...", The Patriarch exclaimed.

"This is beyond anything I've expected. To think you'd recover so adeptly after such a huge setback. It's clear you possess a deep mastery and innovative mind that sets you apart.",

His compliments were not just words of praise but an acknowledgment of Hikari's exceptional talent, ingenuity, and spirit. Even with his wisdom, he was taken aback.

The Patriarch had indeed believed the duel was nearing its conclusion after successfully stealing a significant amount of Hikari's chakra and sealing so many of his tenketsu points.

He had truly not anticipated such a swift and resourceful recovery, showcasing Hikari's unwavering determination and his mastery over his abilities. The Patriarch then realized that even in his old age, there were still many things he hadn't seen that some Hyuga could do. 

"There is no reason to continue this duel then; we are probably evenly matched already...", With those words, the Patriarch suddenly deactivated his Byakugan, signaling the end of their intense exchange. His fighting stance relaxed as he approached Hikari, a warm smile spreading across his face.

He recognized that the purpose of their confrontation was not to determine a victor but to gauge Hikari's readiness to assume greater responsibilities within the clan.

Hikari's display of resilience, innovation, and mastery over his techniques had evidently surpassed the Patriarch's expectations, proving that he was more than prepared for the challenges that lay ahead.

Meanwhile, Hikari couldn't help but reassess the Patriarch's abilities as soon as they concluded their duel, a thoughtful analysis running through his mind,

'The Patriarch truly operates at the Elite Jonin level, much like myself, despite nearing his seventies. It's evident that his advanced Byakugan vision and wealth of experience compensate for any decline in physical prowess he may have faced with age. Yet, my approach to engaging him with Yin Release, at that time, was a misstep, due to the lack of information about his Byakugan...', He pondered, his thoughts methodical and analytical.

Hikari realized that a more effective strategy might have been to leverage his unique Juinjutsu and Gentle Fist tenketsu sealing combination.

Meaning, that using literal juinjutsu markings to 'seal' the opponent's tenketsu points with them, as well, afterward, not just pushing and pressing it out with his Gentle Fist. It involved doing it both, instead, of creating a much harder set of problems for the target to deal with.

Unlike his previous attempts, which heavily relied on direct chakra manipulation, these techniques, rooted in intricate symbols, presented a different challenge—one probably invisible to the Patriarch's Byakugan direct chakra energy vision niche in his opinion.

'Such an approach might have taken the Patriarch by surprise, offering me a tactical advantage previously unexplored... Then who knows how different it might've ended...',

He concluded internally, his mind already running through possible scenarios and outcomes.

The technique Hikari contemplated employing against the Patriarch was the culmination of his extensive research and mastery in fuinjutsu.

After bringing his knowledge and skills in this complex field to what he deemed an 'adequate' level, Hikari didn't stop there.

Leveraging the fundamental principles, symbols, and formulas he had mastered, he ventured into the intricate world of juinjutsu. It was here that a spark of creativity led him to develop and learn such a groundbreaking idea of fusing the juinjutsu with the Gentle Fist and dojutsu.

Having reached significant milestones in both fuinjutsu and medical ninjutsu, now ready to employ them in battles, as showcased here, Hikari began to shift his later-day focus as well.

His afternoons, previously dedicated to the meticulous study and practice of fuinjutsu and medical ninjutsu, were now occupied with a different kind of strategizing.

Hikari turned his attention to the practical implementation of commercial activities within the clan, specifically those that could benefit his lineage.

This shift was not just about broadening his skill set but also preparing for a significant transition in his life and career within the Hyuga clan—formally taking over as an elder.

Meanwhile, as the duel between Hikari and the Patriarch unfolded, Hiashi and Hizashi watched intently, their reactions a mix of concern for their father and their younger friend, pride for their clan, and ultimately, admiration.

Initially, both brothers were tense, understanding the gravity of the test Hikari faced.

However, as the duel progressed, Hiashi and Hizashi's initial concern for Hikari's welfare gradually gave way to respect and admiration. 

The conclusion of the duel, marked by their father's acknowledgment of Hikari's abilities and the declaration of their match as evenly matched, brought a sense of relief and satisfaction to both Hiashi and Hizashi.

The Patriarch's decision to end the duel and his words of praise confirmed their hopes and beliefs in Hikari's capabilities.

Hiashi and Hizashi were not entirely taken aback by Hikari's impressive display of skill during the duel with their father, the Patriarch.

This wasn't their first time witnessing Hikari's capabilities; they had both sparred with him previously, although those encounters were conducted less thoughtfully.

These sessions intended more as training exercises than true tests of resolve, had already given them glimpses into Hikari's potential and the breadth of his abilities.

"Patriarch-sama, your mastery, vision, and strategic depth are also truly unparalleled...", Hikari began, his voice steady and sincere, 'paying back' the compliment, "Facing you in combat has not only been an immense honor but a profound learning experience for me. Your techniques, especially the last one, truly showcased the power of our clan...",

Aware of the importance of aligning with key figures within the Hyuga clan, Hikari understood that building a rapport with the Patriarch was crucial.

This gesture of respect was not just about paying homage to the elder's skills; it was a calculated step towards fostering a beneficial relationship, recognizing the Patriarch's influential position within the clan.

Hikari knew that always currying favor and establishing closeness with the clan's leader could play a significant role in his future within the Hyuga, especially concerning many secrets he intuitively acknowledged that only the Patriarch himself was probably aware.

As the heartfelt exchange between Hikari and the Patriarch concluded, Hiashi and Hizashi made their way towards them, stepping onto the scene of the destroyed battleground. The area, bearing the marks of the intense duel, served as a vivid backdrop to the moment.

Hiashi, with a thoughtful expression, surveyed the damage around them—a testament to the ferocity and skill displayed in the duel.

His gaze then shifted to Hikari and the Patriarch, a slight smile forming as he witnessed the mutual respect and understanding shared between the generations.

It was a moment that filled him with pride, not only in Hikari's demonstrated abilities but also in the depth of the clan's traditions and the continuity of its legacy.

Hizashi, standing beside Hiashi, shared in the sentiment, his eyes reflecting a mix of admiration and contemplation. The sight of the Patriarch acknowledging Hikari's prowess and potential underscored for him the clan's strength and the promising future ahead. 

As Hikari watched Hiashi and Hizashi express their genuine happiness and pride, he began to reflect more deeply on their roles and potential within the Hyuga clan. Observing Hiashi, now 21 and at the peak of his physical development, but still lacking in terms of wisdom and spiritual energy, making him at least 10 years below his overall peak, Hikari recognized the significant strides Hiashi had made, partly spurred by Hikari's influence and encouragement.

In Hikari's eyes, Hiashi had not only reached but mastered his arsenal of techniques, from the original series, far earlier than might have been expected.

This included the formidable 'Twin Lion Fist', marking him as Elite Jonin-level—a testament to his dedication and potential. Yet, despite these achievements, Hikari noted a gap; Hiashi hadn't yet mastered that advanced technique that his father employed against Hikari.

This pivotal skill, in Hikari's estimation, was a benchmark for reaching the Quasi-Kage level, a status epitomized by their father at his peak a few decades back.

Hikari's observations extended to Hizashi as well, noting the unique strides he had made under Hikari's influence in recent years.

Hizashi's efforts to expand his capabilities and explore new developments within the Hyuga clan technique framework were commendable, demonstrating his commitment to his personal growth and the clan's advancement.

Yet, Hikari understood the limitations imposed by the Cursed Seal, a burden that significantly constrained Hizashi's potential to ascend within the clan's powerhouses.

Currently, Hizashi's prowess positioned him around the level of an ordinary Jonin and his highest potential to be around the Elite Jonin level as well, beyond that, it was impossible due to the Cursed Seal effects on his bloodline. 

'Maybe Hizashi is another good target for the lifting of the Cursed Seal, alongside Hinome, in the future, due to his potential. But that is at least a few years away before I could propose that plan with confidence...', Hikari mused internally.

After the deeply insightful and revealing duel, the atmosphere between Hikari, the Patriarch, Hiashi, and Hizashi was one of warm camaraderie and mutual respect. They exchanged farewells, each acknowledging the significance of the day's events and the insights gained.

As Hikari made his way back to his residence within the Main Branch living area, the interactions he encountered along the way marked a notable shift in his standing in the clan.

Members of the Main Branch, who crossed paths with Hikari, now all respectfully addressed him with an attentive "young master," a title that signified more than mere respect for his abilities.

This change underscored a recognition of Hikari's burgeoning role in the clan's leadership and decision-making processes. It was a clear acknowledgment of his talent, strength, and potential, but also of his increasing influence at the highest levels of clan governance.

This newfound status placed Hikari in a unique position within the Hyuga hierarchy, second only to the Patriarch and his designated successor, Hiashi, who was often referred to as the Young Patriarch.

As Hikari navigated his way through the familiar paths of the Main Branch, the respectful acknowledgments from clan members soon became a backdrop to his deeper reflections.

Accustomed to his rising status within the clan, Hikari's thoughts instead turned inward, focusing on the insights gleaned from his duel with the Patriarch and contemplating his own strength and future.

Hikari acknowledged his exceptional talent, considering himself potentially the most gifted individual of his age in the history of Konoha, surpassing even the likes of Kakashi and Itachi in terms of strength at this specific age point in life. 

This was not a thought born from arrogance but rather a recognition of his unique position and the breadth of his abilities, honed by rigorous training, strategic thinking, and innovative approaches to shinobi arts.

Yet, Hikari was also keenly aware of the evolving nature of talent and strength. He anticipated that by the age of 13, also an important point in time when in his life around which the Third Shinobi World War would start, despite his prodigious abilities, he might only reach early Kage level at best.

He reflected on Itachi, who at the same age had already awakened his Mangekyo Sharingan, positioning him at a similar, if not probably superior, level of power, in the original story.

There was also Shisui who awakened his Mangekyo even much earlier than Itachi and that made it hard to say to which extent he could use it at such a young age and about his level.

Furthermore, the legendary figures of Madara and Hashirama, though their exact strengths at his age were unknown, likely presented a comparable or even greater level of prowess, however, that was before the founding of Konoha.

These thoughts did not dampen Hikari's spirit; instead, they fueled his determination to push his limits and continue his growth. As he continued his walk, Hikari's resolve only solidified.