Saul ejected himself from the one he now knew to be his former self. When Saul transmigrated, it was not victimless. The original had been shoved out of his own mind. Not dead, not alive, only able to be a spectator as he watched something else control his body.
He knew. He knew everything Saul had done. This man would be a huge risk factor for Saul going forward. No one could be allowed to heal him with the medical palm ninjutsu. Yet, Saul was not sure by what mechanics he was even in this world. Everything had been fine before. If he were to dispel or erase this will hiding within his own chakra, it could have unknown consequences.
Saul gave the trembling consciousness a sharp glance. Then he returned his attention to correcting the mistakes he made on his body. He interfaced instead with the willless, soulless, blueprint and began the process of assessment. Very quickly, he discovered the first thing he did wrong.
He had been making an error when regenerating his muscles. Wounds inflicted through exertion vs injury were healed differently. The body would improve itself more to the capacity to mitigate the type of injury. If your muscles were torn for example, from lifting weights, your body would make the muscles within more numerous.
This concept was simple enough. Saul already knew it, which is why he had been outwardly bulking up. The real problem was the quality of the muscles he had created.
One of the issues he discovered was that those copied muscles did not have the mitochondrial presence they should. Mitochondria, dubbed the powerhouse of the cell, burned carbohydrates as fuel to power. When trained, most muscles would generate more 'engines' to grow in both power and strength.
Saul had not been increasing the presence of these Mitochondria in his newly generated muscles. Without the use of mitochondria, his muscle cells would be forced into using a type of energy production that did not use oxygen. This reaction was both less energy efficient and built up fatigue extremely quickly.
It was no wonder then, that Saul had found himself feeling exhausted so quickly after fights or making chakra. His body had essentially been outpacing itself. Its power and speed grew, yet its stamina had not grown with them.
In fact, his entire body was playing catch up with his muscles. Nerve networks had yet to fully form and interface with them, the bones did not yet have the strength to support their strength, even the muscles themselves were starving for nutrients. Saul's accelerated training had not come without its consequences. Thankfully, these consequences were not things he needed the chakra scalpel to fix.
He needed more materials, nutrients to create and consolidate his body's growth. Yet he was always lacking something. Between feeding Hinata, Karin, and now even Temari, Saul had already spent as much as he reasonably could. And yet it wasn't enough. It was never enough.
Thankfully, medical ninjutsu was quite flexible. It either required the resources already present within the body, resources Saul didn't currently have, or it required an exorbitant amount of chakra. Luckily for Saul, he had a chakra battery present right with him.
The Saul who was using the mystical palm ninjutsu dispelled itself, returning its memories to the original. The original Saul opened his eyes.
A red haired woman knelt by the couch where her master sat. As an Uzumaki, Karin had the purest bloodline of the Uzumaki remaining. It was so potent that she had access to natural bloodline abilities like Kagura's Mind Eye. Her blood was so full of chakra, vitality and life that whoever drank it would be healed and have their body's chakra replenished.
All of the Uzumaki were chakra monsters as well. Naruto's chakra for example, even without the nine-tails' replenishment, was functionally infinite for a huge portion of the series. The reason why they were so suitable for being Jinchuriki is also because of this.
A Jinchuriki had to have enough chakra innately to not be simply overpowered by the presence of the tailed beast within them. Otherwise, they'd be continually influenced by the chakra of the tailed beast, going berserk from time to time. This was the case with Gaara. He couldn't even sleep!
Even now after all his training and growth, Karin's chakra quite simply eclipsed Saul's own by an unfathomable margin. It was like comparing the earth to the sun - his own chakra was simply microscopic in comparison.
Karin, the one of the last possessors of this extremely special bloodline, knelt obediently before him. She had her head down, not daring to look up or disturb him in any way. The irony of her situation. She was essentially an elephant tied to a stake, unable to break free merely because of her own psychological chains and traumas rather than any real restriction. Saul would make use of this.
"Karin. Your arm."
"Yes, master."
The red haired girl obediently lifted up her arm for him to bite. The soft, white skin of her forearm was revealed, his for the taking.
There was something uniquely intimate about these moments with Saul for Karin. In them, she surrendered herself, her body, for her master to do as he wished. Yes, it was painful. When his teeth sunk into her arm, the bite didn't hurt any less than the others. Yet while he sucked, Karin felt nothing but warmth. It was the warmth of feeling wanted, needed. And afterwards, he'd always care for her.
In these moments, only while his gaze was fixated on her arm, did Karin feel free to look up and study his face. She now loved this aura of his, this purple aura mixed with flecks of gold that always seemed directed toward her. The gold within it seemed to increase after each moment they spent together.
She wondered if one day it'd turn mostly gold with her, like it did when he was with Hinata. She imagined the feeling of his lips against hers, instead of on her arm. Or maybe, just maybe, on her lower lips instead.
Karin let out a soft exhale at the thought, a sign that only seemed to be picked up on by the overseeing Hinata. The violent red flare up in her aura caused Karin's eyes to widen.
Then Saul started sucking. Her attention shifted back to the sensations of her heart growing warm yet her arm growing cold. He needed much, much more than usual. Karin could feel it. Was he really okay?
Karin pushed her arm further into his mouth. It was a sincere offering, yet also a guilty pleasure Karin refused to reveal to anyone else. He needed her. He needed her, more than his beloved Hinata. Karin looked at Hinata again with a lingering heat in her gaze, who simply returned a slight frown. There was no disturbance in her aura.
It had simmered much more after the initial reaction. Hinata must have known, just as much as Karin did, that she was 'needed'. Acting out against Karin would be harmful to her master.
This was also a source of 'power' to the powerless Karin. As long as she remained useful, as long as she continued to please her master, she could get more of what she wished. More of what she wanted. Hinata would not always be here to get in her way.
Maybe, after he finished today, Karin could ask for something special. She already had something in mind. Something that could bring her closer towards her master. Karin just had to take care of him first...
Author's Note: Chapter done! Sorry I didn't want to write before and buried my head in the sand actually, haha. Work keeps me busy already, and this was becoming a second job where I didn't get paid lol. I got two new subscribers however (who I'm incredibly thankful to, you know who you are) while my head was in the sand, and that revived my hope for maybe writing being a viable method for living in the future. Just gotta stick with it. So I got the motivation to write again.
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