Crack.
As if some kind of barrier limiting the soul's upper limit had been broken, the sound of glass shattering came from inside his body, cracking open evenly.
Like being reborn, shedding the old shell of the past, the Reiryoku stored in his body was also completely renewed, giving Naraku Sora the illusion of transforming into a brand-new species.
Although his Reiatsu was still at the 10th rank, a metamorphosis had occurred in essence.
The Power of Hollow and his own Reiryoku merged even more perfectly. The two were intertwined and indistinguishable from each other, as if this were the power he was born with.
Although it was only 5%, under the wondrous chemical reaction, it exerted an amplification effect of nearly 100%.
Naraku Sora looked down. The muscles on his arms bulged like coiled dragons. Clenching his fist forcefully, a creaking sound that made one's scalp tingle burst forth.
Powerful!
The increase in growth potential brought about an all-around amplification, as well as a change in his own potential.
Even without relying on the Golden Finger now, Naraku Sora could still rise to the level of a first-class Captain in the future. This was the confidence brought by the increase in growth potential.
"This is hitting the jackpot."
Naraku Sora grinned, his white teeth particularly striking under the light, like a sleeping beast gradually waking up, emitting a rampant ferocity to the outside world.
He was now looking forward to his future more and more.
Perhaps in the near future, he could truly stand above the heavens.
Inside the prison, the sinners looked at the young man outside trembling, not understanding what had happened to him.
That intense sense of oppression gave them the illusion of suffocation.
Like facing a natural predator!
...
...
"Ah, Lady Warden, not there!"
In the prison barracks, inside Shutara's exclusive research lab, Naraku Sora let out a shameful wail, twisting on the experiment table like a fish out of water.
Shutara Senjumaru glanced at him irritably and scolded:
"Weren't you very spirited when you smashed the Detention Room door earlier? Why are you acting like small fry now? Isn't it just taking off your clothes?"
"This is a Reiryoku needle. It only needs to pierce the Hakusui position to analyze your Reiryoku composition."
"Rest assured, I know what I'm doing."
Saying that, ignoring someone's screams, this woman forcefully inserted a long needle resembling a python needle into Naraku Sora's abdomen.
Normally, this level of damage would directly cause a Shinigami to lose their Reiryoku and completely become a mediocrity.
But who knows what method Shutara Senjumaru used? The python needle—no, as the Reiryoku needle was inserted, Naraku Sora felt nothing at all.
He now lay on the experiment table like a dead fish, looking hopelessly at the thick reddish needle stuck in the center of his abdomen, allowing the other party to manipulate him.
Such is life under someone else's roof.
Especially since Shutara Senjumaru promised to give him certain compensation after the research ended.
Preferably something substantial, not just verbal rewards.
A Reishi light screen unfolded directly in front of the experiment table, and a series of dizzying numerical formulas popped up continuously.
Followed by a bunch of incomprehensible terms like Reishi wavelength, balance three, and so on.
Her slender ten fingers spread out gently. Materialized Reishi constantly dissipated from her fingertips. Under Shutara Senjumaru's manipulation, they were woven into threads, outlining one pattern after another.
She seemed to be deducing some possibility.
Staring at the constantly changing patterns, Naraku Sora's eyes went blank, only feeling his head itch.
After a while, Shutara Senjumaru narrowed her eyes slightly, revealing a puzzled expression, and murmured in a low voice:
"It's actually completely different from my calculations?"
"Is the degree of Hollowfication insufficient, or is there another secret I don't know?"
"What exactly is missing?"
Shinigami and Hollows are both composed of Reishi. Their essential difference lies in the soul.
Hollowfication can be summarized in a sense as one soul accommodating fragments of another type of soul, thereby breaking the original shackles and achieving a breakthrough to a certain extent.
This practice is extremely dangerous.
There have been Hollowfied Shinigami in history, but without exception, their rationality was devoured by the violence derived within their souls, and they completely degenerated into Hollows who lost their nature.
There has never been an existence like Naraku Sora.
As a researcher, Shutara Senjumaru naturally inevitably dabbled in this field, even though this is an extremely serious taboo in Soul Society.
But curiosity is often one of the greatest driving forces for scientific development.
"I need more and more detailed data."
Shutara Senjumaru waved her sleeve. The moment the thick red Reiryoku needle flew out, the Kidō restraints on Naraku Sora also fell off completely.
The young man leaped off the experiment table with a carp kip-up and put on his Shihakushō with lightning speed, afraid of being taken advantage of by a certain woman.
"What's the rush? You'll have to take it off again later."
"?"
When I type a question mark, it's not that I have a problem, but that you have a problem.
It was just a guess before, but now it can be confirmed.
This woman craves his body!
Shutara Senjumaru waved her sleeves, and various high-precision instruments in the research lab sank into the walls or the floor.
In the blink of an eye, the huge room became empty.
"Simple observation cannot yield the desired answer, but as far as I know, when a Shinigami is fighting..."
Speaking of this, Naraku Sora suddenly noticed that Shutara Senjumaru's smile had become a bit more dangerous, like a flower with thorns.
"Reiatsu will fluctuate violently, and Reiryoku will also undergo different degrees of change."
Shutara Senjumaru parted her red lips lightly, standing in place. A faint pressure permeated from around her, gradually covering the entire research lab.
"Give it your all. Let me see your limits."
Naraku Sora was stunned for a moment. After a moment of silence, he revealed a similarly dangerous smile and nodded gently:
"Alright."
Although he knew the gap between him and Shutara Senjumaru was despairingly large, he also wanted to see where his limits were.
How much amplification did the so-called increase in growth potential bring?
The young man grinned, raised his arm, and tightened his grip on the Zanpakutō drawn from his side.
The next moment, the duel began!
Cold blade light bloomed like moonlight, issuing a deafening roar towards the top existence in Soul Society.
Squelch!
The sound of tearing muscle tissue burst forth. The blade cut straight through the outer haori, and bright red blood spurted out, along with fragments of bone and internal organs.
In just an instant, the figure in front of him was completely dismembered!
The tragic scene even made Naraku Sora dazed.
Am I already strong to this extent?
Just then, a gentle voice came from behind, with a hint of helplessness in the tone:
"Silly boy, how long are you going to look at that illusion woven from fabric?"
Naraku Sora's breathing stopped abruptly.