"I'll give it a try."
With great interest, Shizune took hold of the Mystical Palm scroll. Forming a series of hand seals, she activated her chakra scalpel without hesitation, making a cut on her forearm.
Blood began to flow as a fresh wound appeared.
"...." Kiyoshi was at a loss for words.
In fact, there really wasn't anyone better suited for this than Shizune.
Tsunade had now mastered the ability to heal herself without seals. Although she wasn't quite on par with the First Hokage, she could still recover from such injuries almost instantly.
As for Karin?
After consuming the artificial devil fruit grown from the body of the Uzumaki clan leader, her bloodline had become remarkably pure, comparable to that of Uzumaki Mito.
Even without being a Jinchuriki, her immense vitality and chakra reserves granted her astonishing regenerative abilities.
Her unique chakra allowed her to heal without even having to bite herself, with wounds of this level able to heal almost completely within minutes.
However, the Mystical Palm scroll, since it was not made using sage chakra, did not produce such dramatic results. It could only slightly accelerate the healing process.
In comparison, despite Shizune acquiring the Kekkei Genkai Swift Release and the heritage of the Hagoromo Clan through a artificial devil fruit, her chakra reserves and other abilities couldn't compare to the incredible vitality of the Uzumaki clan.
At most, her strength was on par with an exceptionally talented Senju clan member.
The scroll emitted a faint hum as it adhered to her skin.
In mere moments, the flowing blood began to cease, and Shizune could clearly feel powerful life force within the chakra from the scroll swiftly healing her wound.
"Shizune-senpai, is it working?" asked Karin impatiently.
"Yes, the effect is remarkable." Shizune nodded repeatedly as she looked at Tsunade, Karin, and the others watching her.
Then, glancing toward Kiyoshi, she said with admiration.
"Although it doesn't match the effectiveness of Kiyoshi's Mystical Palm Technique, his special chakra has made it much more potent than a standard healing jutsu."
In under a minute, Shizune removed the scroll. She wiped away the blood, and the once-visible wound had completely vanished, as if it had never been there.
"When the stored chakra runs out, the effect might weaken if someone else's chakra is used. But it will still be quite potent." Kiyoshi said with a smile.
"In crucial moments, this could be a lifesaver."
Watching the faintly glowing green scroll continuously outputting chakra, Tsunade placed it on her own hand, closing her eyes to sense its function.
Moments later, she opened her eyes and marveled, "This is truly an incredible invention."
Even Tsunade had to admit that she hadn't fully grasped the extent of Kiyoshi's talent.
She gazed at him deeply, touching his face. "I really underestimated you."
Her decision to let him venture out to develop forbidden jutsu on his own had been the right one.
Otherwise, even if his talent hadn't been stifled, he certainly would have been held back.
"This isn't the only thing I gained on my journey back to the village." Kiyoshi replied with a smile, putting the Mystical Palm scroll away.
He then took out a storage scroll from his ninja tool pouch, unrolling it and summoning two more scrolls.
"Here." he handed one scroll to Tsunade and the other to Shizune, who both accepted them with curious expressions.
"Body Revival Technique?"
"Regeneration Technique?"
Tsunade and Shizune unrolled the scrolls. Their eyes widened in shock as they both looked at Kiyoshi, visibly stunned.
"Yes, the Root seized these from a sky shinobi remnant who had infiltrated Konoha for years, attempting to steal sealing techniques," Kiyoshi nodded.
"Strangely, he could use these techniques in combination with a mysterious chakra to easily activate the Eight Gates, bypassing the side effects."
"However, since he relied on these medical techniques to unlock the Eight Gates rather than undergoing the rigorous training that Might Duy and his son Guy endured, his strength was limited, and there were several flaws."
"What a brilliant concept." Tsunade murmured as she finished reading the Body Revival Technique scroll.
She eagerly exchanged it with Shizune, who handed over the Regeneration Technique scroll in return.
Taking a deep breath, Tsunade's eyes sparkled with excitement.
"Though there are some flaws, there's no denying that these techniques are exceptional—they could complement the Strength of a Hundred Seal perfectly."
With her expertise as the most skilled medical ninja, Tsunade immediately recognized the value of these techniques and saw how well they could integrate with her own Strength of a Hundred Seal.
If they were combined perfectly, they could bring the user dangerously close to an immortal state during battle.
"Indeed, my plan is to draw inspiration from these techniques to develop a new forbidden jutsu that would synchronize with the Yin Seal and Strength of a Hundred Seal, greatly amplifying combat strength," Kiyoshi said with a smile.
"This jutsu would not only activate the cells but allow for regeneration even if the body is torn apart. Unlike basic cell division in Creation Rebirth, it wouldn't significantly affect lifespan.
Theoretically, every injury would toughen the cells, spreading resilience throughout the body, as if undergoing intense, hardship-filled training. The user could grow stronger with each battle."
"Incredible."
Hearing Kiyoshi and Tsunade's insights, Shizune, who had vastly improved her medical skills over the past two years as Tsunade's foremost disciple, could now also see the immense potential of these techniques.
She took a deep breath to calm herself and added, "The only caveat is that the user's chakra reserves must be able to sustain these techniques continuously."
However, chakra? For their team of four, that wasn't an issue.
Tsunade and Karin both had reserves well beyond the norm, and even Shizune, with the artificial devil fruit that had granted her the Swift Release and Hagoromo Clan heritage, had seen a monumental increase in her chakra capacity over recent days.
Though she couldn't yet match a tailed beast, she had far surpassed the typical elite Jonin, not to mention the support from the Yin Seal and Strength of a Hundred Seal.
"Whoa..." Karin, with less knowledge of medical jutsu, couldn't believe her ears and blurted out, "Lady Tsunade, is this really that amazing?"
"Yes, Kiyoshi is right. These techniques seem as if they were made specifically for users of the Strength of a Hundred Seal." Tsunade replied, her eyes shining with excitement.
With her near-limitless Wood Release power, or rather, Yang Release, inherited from her grandfather, she could already heal without hand signs.
Combined with the Strength of a Hundred Seal, as long as her head wasn't severed or her heart completely destroyed, she could regenerate even if her organs were damaged, her throat was slashed, her heart pierced, or her body torn in two.
But such healing consumed a large amount of chakra and, if the injury was too severe, could significantly shorten her lifespan.
With these new techniques, however, she could minimize these risks in battle, and the Strength of a Hundred Seal could counterbalance their drawbacks.
This would allow the user to heal and regenerate mid-battle, becoming stronger and more resilient with each fight.
"But this alone isn't enough." Kiyoshi crossed his arms, smiling.
"I want to develop a technique that would amplify the Strength of a Hundred Seal, pushing the user's combat power to an entirely new level.
A forbidden medical jutsu that would enhance the user's strength, speed, and reaction time to rival even Sage Mode, or perhaps stack with its effects."
"A complete boost to all attributes—strength, speed, and even nervous response."
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