On this matter, Uchiha Shinji didn't repeatedly emphasize anything to Yakumo.
He had already issued his warning. If Yakumo couldn't—or wouldn't—rein in Ido, he wouldn't show mercy again. He'd eliminate Ido immediately and reclaim the Koryugan.
What he needed was a capable subordinate, not a liability!
"Get used to the Koryugan first. As for the follow-up surgery, I'll arrange it based on your physical condition."
After giving his instructions, Shinji's form flickered and vanished from the spot.
Watching the leader leave, Yakumo slowly rose from the floor, wiping the fine sweat from her forehead while confronting Ido: "Why didn't you listen?"
Ido stammered, unable to respond.
She hadn't intended to defy the leader. It was just that, having suddenly gained immense power, her mindset had wavered, and she'd gotten a bit carried away.
Now, she was genuinely terrified.
Unlike Yakumo, she was a spiritual entity, far more sensitive to killing intent. She knew that, for a fleeting moment, the leader had harbored murderous intent toward her!
That was why she'd been trembling nonstop!
Yakumo continued, "These eyes were granted by the leader. Our future was granted by the leader. If you ever intend to defy him, then I'll have no choice but to…"
"Stop it!" Ido interrupted Yakumo, awkwardly muttering, "I'm not dumb enough to go against a monster like that!"
With that, Ido retreated back into Yakumo's inner world.
"Sigh!"
Yakumo let out a breath.
Inwardly, she resolved to figure out a way to control Ido. She couldn't let her run wild like this anymore.
Outside the Kurama clan's territory.
Perched atop a large tree, Shinji glanced back at the Kurama clan's main residence.
Ido's untamed nature left him hesitant, unsure whether he should proceed with the follow-up White Zetsu cell transplant surgery for Yakumo.
At present, Yakumo was limited by her innate physical frailty. Even with the Koryugan transplanted, if Shinji cut off the supply of Yang Release chakra, her body would quickly collapse under the strain.
But once White Zetsu cells were transplanted, the power of all things unified by yin and yang wouldn't just restore her body's vitality—it would also cause her chakra to surge explosively, much like Karin's!
At that point, suppressing a vastly empowered Yakumo wouldn't be so easy for Shinji.
Because the chakra-draining ability of "Wazunagi" wasn't absolute.
If the target's chakra was strong enough, they could resist "Wazunagi's" extraction to a certain extent.
Take Karin now, for example. If she fully resisted "Wazunagi," Shinji would actually struggle to drain her chakra.
But since Karin had never resisted his "Wazunagi," Shinji could always use it to effortlessly extract her high-quality Yang Release chakra.
"Forget it. Overthinking won't help!"
Shinji shook his head.
Opportunities and risks always coexisted—nothing was ever foolproof. To gain a capable subordinate and use someone else to develop the Koryugan, he had to accept the risks.
Taking a deliberate detour beyond the Koryugan's transparency range, he stopped at a secluded spot and shed his red-cloud cloak.
Then, he applied a sealing technique he'd learned from the medical team, called "Meridian Seal."
This sealing jutsu was just a C-rank basic technique, known to nearly every shinobi in the medical corps.
Its purpose was simple: to seal a patient's meridians, preventing interference from their chakra during surgery.
Though its sealing effect was mediocre, it was surprisingly effective for disguising oneself and fooling shinobi with transparency-capable dojutsu Bloodline Limit.
As long as Shinji didn't activate his Eternal Mangekyo Sharingan in front of Yakumo or Neji, his chakra fluctuations wouldn't be too intense to begin with.
With the aid of the "Meridian Seal," even Yakumo, with her Koryugan, wouldn't easily see through his identity.
After completing the seal, Shinji mulled it over and thought to himself, "Next time I meet Yakumo, I might need to disguise my blood circulation system too."
The Koryugan didn't just offer transparency—it also had a unique insight into blood.
Yakumo had only received the Koryugan tonight and wasn't yet familiar with this ability. But once she mastered it, if Shinji only disguised his appearance and chakra, he likely wouldn't be able to fool her.
Fortunately, Shinji was well-versed in medical ninjutsu. With deliberate effort, tricking Yakumo wouldn't be an issue.
Inside a Hidden Leaf training ground.
Dozens of sweat-drenched Narutos lay sprawled on the ground, panting heavily.
But they weren't resting peacefully. Instead, they all stared at the center of the training ground, fixated on the three Narutos still standing.
Among those three, the real Naruto extended his right hand, focusing intently on sustaining the glowing pale-blue chakra orb in his palm.
Flanking him, two of his shadow clones concentrated just as hard, manipulating chakra to spin the orb in his hand.
As the chakra orb Gradually began to rotate, stirring up faint gusts of wind, Jiraiya and Tsunade, watching from a distance, couldn't help but be drawn in.
Jiraiya narrowed his eyes slightly, excitement flickering in his gaze.
Tsunade, meanwhile, was dumbfounded: "How is this possible!"
With her keen perception, she could tell Naruto had crossed the threshold and grasped the essentials of the "Rasengan." Even if he failed this time, success wasn't far off.
And Naruto was only eight, having trained the "Rasengan" for barely a week!
The field full of shadow clones also sensed victory was near, shouting in unison, "Keep going! Keep going!"
Amid the rallying cries of his clones, Naruto's trembling hand steadied. He yelled, "Spin for me!"
* Whoosh!*
In an instant, accompanied by a gust of wind, the chakra orb in his palm underwent a qualitative transformation, becoming a true "Rasengan."
Staring at the "Rasengan" he could maintain without his clones' help, Naruto mumbled in a daze, "I-I did it?"
Boom, boom, boom.
At that moment, all his shadow clones burst apart and vanished.
Overwhelmed by exhaustion, Naruto couldn't hold on any longer. His vision darkened, and he collapsed to the ground. The "Rasengan" in his hand smashed into the earth, blasting out a large crater.
Jiraiya and Tsunade rushed over.
Looking at Naruto, who had passed out from fatigue yet still wore a smile, Tsunade's heart seemed to stir.
In that moment, she saw shades of her younger brother in him.
Jiraiya asked with concern, "Is the kid okay?"
Tsunade shook her head: "He's fine. He's just exhausted. A day's rest, and he'll be good as new! Don't forget, he's Kushina's son!"
Jiraiya grinned.
Tsunade suddenly added, "Maybe you're right after all! This kid might grow up to be a great shinobi, no less than his father!"