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Yayoi tore off the bandages from the corner of her eye, revealing the right side of her face as pale and bloodless as that of a corpse.
For a whole year, Hyūga Yayoi had endured unimaginable torment.
The Ōtsutsuki cells within her had an overwhelmingly invasive and assimilative effect.
If not for her Hyūga bloodline, which shared a common origin with the Ōtsutsuki of the moon, she would have died a hundred times over.
Even so, the pain was unrelenting. Yayoi constantly needed to suppress the spread of the cells with chakra.
The agony was akin to an endless swarm of termites gnawing at her flesh day and night.
As the saying goes, "Suffering either destroys you or forces you to rise."
Unable to bear it any longer, Yayoi began searching for her own way out.
Would she accept the fate of bearing the Caged Bird Seal and surrendering her life and death to the main family?
Fine. If that was her destiny, she could endure it.
Would she obey the order to marry the clan's worthless son?
Fine. Yayoi had no choice but to comply. When her very life wasn't her own, marriage was a trivial matter.
But why did the clan leader have to torment her so cruelly?
It wasn't just about enduring pain anymore. Yayoi was determined to seek vengeance against those who had harmed her.
With the bonds of her clan no longer holding her back, she made the most critical decision of her life.
She sought out Uchiha Kyosuke, pleading for his help in resolving her body's abnormal condition.
To this day, Yayoi didn't fully understand the origins of the Ōtsutsuki.
She only knew her body had been sealed with some terrifying cellular matter.
She believed only Uchiha Kyosuke could help her.
As proof of her resolve, she ambushed and killed a fellow Hyūga Jonin during the chaos of war, presenting his head as a token of allegiance.
If Kyosuke reported her to Hyūga Tenjin, the clan's leader, her fate would be death by the curse seal.
By holding this token of her loyalty, she hoped to secure Kyosuke's aid in alleviating her suffering.
"Ah!"
The sensation of something crawling beneath her skin, like a centipede wriggling, elicited agonized screams from Yayoi.
"I swear… I'll kill them all myself!"
By the time Kyosuke and Mito arrived, Yayoi was on the brink of collapse.
"Save her!"
Kyosuke commanded as they both began performing the Mystical Palm Jutsu to stabilize her condition.
Under his pressure and guidance, Mito had recently delved into medical ninjutsu, and within months, she successfully developed the Mystical Palm Jutsu.
Kyosuke himself, though less inclined toward delicate work, occasionally read medical texts and was proficient enough to suppress cellular disruptions with chakra.
Together, the two worked swiftly to bring Yayoi back from the brink of death.
"Move aside."
Mito pushed Kyosuke out of the way, took a deep breath, and placed her hands on Yayoi's cheeks.
"Finjutsu: Four Symbols Seal!"
A spiral-shaped seal spread across the right side of Yayoi's face.
Kyosuke, seeing her breathing stabilize, asked curiously, "Why use the Four Symbols Seal for this?"
Pointing at the curse mark on Yayoi's forehead, Mito explained calmly, "The Caged Bird Seal can no longer suppress the power within her. A stronger seal was necessary."
"So, you're sealing the Ōtsutsuki cells as if they were a tailed beast?" Kyosuke mused. On second thought, it seemed like a reasonable solution.
Yayoi, a prodigy among the Hyūga clan, had unmatched talent.
It was impossible for Kyosuke to turn away someone who might awaken the Tenseigan in the future.
As for easing her pain, aside from the Mystical Palm Jutsu, the only viable solution was to remove the Caged Bird Seal entirely.
Only the purest Byakugan could integrate with Ōtsutsuki chakra and evolve into the Tenseigan.
Kyosuke sought the help of sealing expert Uzumaki Mito because the process was too complex.
Otherwise, he would need to spend a staggering 15,000 points to exchange for the complete Caged Bird Seal formula.
"Anything but spending money," Kyosuke muttered to himself.
The Hyūga clan's centuries-old techniques weren't something Mito, still a girl, could unravel.
Even if Uzumaki Ashina himself were present, it would take decades of research to comprehend the seal's secrets.
If it were so easy to break, the Hyūga clan would have been destroyed long ago.
The Caged Bird Seal ensured that the branch family, forever oppressed, couldn't rebel against the main family.
The lack of such incidents was simple: no one had yet figured out how to break the seal.
After months of attempts, Kyosuke was close to giving up. Without spending points to exchange for the seal's formula, there was no other way to save her.
The next step was clear: Yayoi had to prove her worth.
If her value exceeded the 15,000 points needed to break the seal, Kyosuke would gladly help her.
Loyalty? Too abstract. Absolute loyalty didn't exist in this world.
Kyosuke didn't have Orochimaru's brainwashing abilities, and Yayoi's strong will made her immune to manipulation.
Her combat potential was obvious. As Hyūga Tenjin's disciple, she was bound to reach the level of a clan leader.
But that wasn't enough.
To evaluate her talent, Kyosuke spent 3,000 points to exchange for knowledge on cell cultivation.
The material spanned from basic observation to advanced reproduction techniques, rivaling modern medical science in complexity.
Kyosuke didn't lack combat-oriented allies; he needed skilled experts in fields like sealing and biological sciences.
He gave Yayoi two years to master the basics of cell cultivation. If she succeeded, he would free her from the Caged Bird Seal.
But to his surprise, only six months later, Yayoi used a secret method to summon him.
That led to the present moment.
Wobbling to her feet, Yayoi led Kyosuke and Mito into her hidden laboratory deep within a mountain cave.
Donning a white lab coat, Yayoi retrieved a stack of documents and announced flatly, "I've succeeded."
In front of them, a glass container held a pulsating mass resembling flesh.
It originated from the Ōtsutsuki's body but was not original tissue. Instead, it was a product of Yayoi's cell cultivation efforts.
She had completed Kyosuke's test over a year ahead of schedule.
Of course, the provided research material was instrumental. Without it, she would have needed a hundred years to achieve this on her own.
Even so, her innate talent was undeniable. Kyosuke himself had struggled to even comprehend the documents, finding them dizzyingly complex.
In conclusion, Yayoi's performance was extraordinary.
She had the potential to become a top-tier scientist.
Such talent was not something Kyosuke could afford to let slip away.
[Chapter End's]
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