บท 90: Ch.90 Transplant Surgery
Since they had already communicated in the 'Jikibi Space,' Karin wasn't surprised at all by the leader's late-night visit.
She looked at Uchiha Shinji and asked, "Leader, can the surgery be performed now?"
"Yes."
As Uchiha Shinji prepared the surgical tools, he glanced at Karin out of the corner of his eye.
Though Karin appeared to be unafraid on the surface, Uchiha Shinji still caught a fleeting moment of fear in her eyes.
Once everything was ready, Uchiha Shinji slowly said, "I've already done the experiments. The risk of the surgery is controllable. Your cell tissue is much stronger than I expected. Plus, with the powerful vitality of the Uzumaki Clan, even if there's a strong rejection reaction during the surgery, I'll have enough time to perform a cell removal operation."
"I understand."
Karin suppressed her fear.
She had great confidence in her leader's abilities. The last eye transplant surgery had gone smoothly, so even though she was deeply afraid, she chose to face the surgery head-on.
After instructing Karin to lie down on the bed, Uchiha Shinji injected the specially prepared fusion fluid into her body.
Then he said to Karin, "Look into my eyes now!"
Obediently, Karin looked into the crimson Mangekyō Sharingan beneath Uchiha Shinji's mask.
In an instant.
Her gaze became vacant, and the Mangekyō Sharingan in her eye sockets, which still retained some power, changed from its normal black color to a deep red. Then, three tomoe appeared, slowly spinning, before they finally merged into a complex pattern.
"Phew."
Uchiha Shinji exhaled lightly and released the genjutsu on Karin.
Karin gasped, "Is this... the Mangekyō Sharingan!?"
Without a doubt, Uchiha Shinji had just used genjutsu to help Karin awaken the Mangekyō Sharingan in her eye sockets.
The purpose of this was mainly to stimulate the Mangekyō Sharingan to release high-intensity Yin Release chakra to neutralize the excess Yang Release chakra in the White Zetsu cells.
Although Karin had transplanted these Mangekyō Sharingan a long time ago, this was the first time she had truly activated them, and she was immediately overwhelmed by the unparalleled visual prowess of the Mangekyō Sharingan.
At the same time, the information about the dojutsu within the Mangekyō Sharingan surged into Karin's mind.
"Take a moment to adjust."
Uchiha Shinji didn't start the transplant right away.
He needed to wait for Karin to adapt to the Yin Release chakra of the Mangekyō Sharingan, and for the fusion fluid he had just injected to take effect.
Time slowly passed.
Soon, half an hour had gone by.
Uchiha Shinji said, "It's time to begin the surgery! Remember, if you feel like your body can't handle it, immediately channel the Yin Release chakra from the Mangekyō Sharingan. It can help you neutralize some of the excess Yang Release chakra."
Karin quickly nodded, "Understood!"
The fusion fluid had already taken effect in Karin's body, so Uchiha Shinji didn't hesitate. He seized the opportunity of the medication's active window and began the cell transplant surgery.
The cell transplant surgery wasn't much more complicated than the eye transplant.
Additionally, Uchiha Shinji had practiced hundreds of times in the lab over the past few days, so he was already very familiar with the process. In less than ten minutes, he completed the entire cell transplant procedure and even cleaned and stitched up the wound on Karin's arm.
Uchiha Shinji asked, "How do you feel?"
"It's just... itchy!" Karin paused, then suddenly frowned, "Leader, my arm feels really itchy, like there are lots of little bugs crawling on it!"
"That's normal!"
Uchiha Shinji remained calm.
The worst-case scenario would have been widespread necrosis of the transplanted tissue, or the White Zetsu cells going berserk, rapidly proliferating by using the host's chakra.
The second worst would be a severe rejection reaction, causing the transplant area to swell and bleed.
Itching and a slight increase in body temperature were normal fusion reactions and were considered the best post-surgery outcome.
Under Uchiha Shinji's guidance, Karin began using the Yin Release chakra from the Mangekyō Sharingan to neutralize the Yang Release chakra from the White Zetsu cells.
The effect was remarkable.
Not only did Karin feel the itching in the transplanted area lessen, but even Uchiha Shinji, who was observing from the side, noticed something astonishing.
Karin's arm had several old and new bite marks.
These marks were left from when Karin had healed others. One of them had even been left by Uchiha Shinji himself.
As Karin guided the Yin Release chakra from the Mangekyō Sharingan to neutralize the Yang Release chakra from the White Zetsu cells, these bite marks on her arm began to fade rapidly before his eyes. In just a blink, her skin became smooth and flawless once more.
"This..."
Seeing this, Uchiha Shinji was utterly shocked.
Karin's unique constitution made her highly resistant to Yang Release chakra, which was why the medical ninjutsu of Uchiha Shinji and Coalball had little effect on Karin's mother.
The fact that the bite marks on Karin's arm disappeared so quickly wasn't solely due to the Yang Release chakra. It might also have been the effect of the high-quality Yin Release chakra combining with the high-quality Yang Release chakra.
At that moment, Uchiha Shinji's gaze shifted to the half-damaged Mangekyō Sharingan in Karin's eye sockets.
Her left Mangekyō Sharingan now glowed with an eerie red light, clearly showing signs of being nourished.
Even her right, blind eye had changed from its previous lifeless white color, with a faint trace of black now appearing in the pupil.
Although the black was barely noticeable, it was there!
"It's healing!"
Uchiha Shinji trembled with excitement.
Before the surgery, he had firmly believed that the Uzumaki Clan's Sage Body, combined with the Senju Clan's Sage Body traits within the White Zetsu cells and the properties of the Divine Tree, could create a miracle.
But now that the miracle was happening right before his eyes, even the one who had orchestrated it was left in awe.
"No wonder Obito, just by transplanting White Zetsu cells, could use a Mangekyō like an Eternal Mangekyō Sharingan..."
He couldn't help but marvel. White Zetsu was indeed Uchiha Madara's greatest scientific achievement during the decades following the battle at the Valley of the End.
Of course.
Only someone like Uchiha Madara, who had both the Rinnegan, the First Hokage's cells, and the power of the Demonic Statue of the Outer Path, could create the specialized White Zetsu.
Even technological geniuses like Orochimaru, Hiruko, or Sasori wouldn't have been able to achieve that.
Collecting his scattered thoughts, Uchiha Shinji resumed documenting the surgery, then asked Karin, "How do you feel now?"
Karin replied, "My arm doesn't itch anymore."
Uchiha Shinji nodded and continued, "What about your eyes?"
"My eyes!?"
Karin was startled for a moment, then focused her attention on her eyes.
Swish.
In an instant, a red, ethereal figure projected from her body.
"This...!?"
Uchiha Shinji was taken aback and immediately cast a genjutsu on Karin with his Mangekyō Sharingan.
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