As Ron descended slowly, his gaze fell naturally on Tsunade. Standing just under five feet tall, around 150 centimeters, he had to slightly tilt his head upward to meet her eyes. Tsunade, at 164 centimeters, stood taller and carried a presence of quiet strength. Her figure, though not as developed as in her later years, was already starting to show the traits that would one day become iconic. She looked a little younger, slightly less mature, but the weight of her lineage and chakra was already evident.
Ron's eyes briefly flicked between her eyebrows, sensing the subtle chakra flows hidden beneath the surface. Though he couldn't sense the spiritual world where Kurama resided, he could sense the alterations in her Yin Seal. With his sharp intuition, profound sealing knowledge, and chakra control made even freer after he'd removed the chakra mark inherent to all shinobi, Ron found the current moment quietly fascinating. He was always interested in the changes he brought due himself to the ninja world, so this was interesting.
At her side were two legendary beings, Kurama, whose keen senses had long since stirred with interest, and the Katsuya Sage, calm but observant.
Just then, Ay stepped forward, expressing a mix of concern and curiosity. "Brother, why are you here? And why does your chakra feel… strange?"
Kurama narrowed his eyes, the slit pupils flashing. "Brat," he growled with intrigue, "is that Yin and Yang chakra releasing and permeating through your chakra network?"
Katsuya's Sage form gently nodded. "I can feel it too… But there's more. It's as if you're resonating with nature itself. Yet, you haven't merged with natural energy, have you?"
Ron smiled, pride lighting his face. "Brother, this is a new form of chakra. It incorporates active Yin and Yang nature transformation, but not in the usual sense for ninjutsu."
"The chakra we're used to," he continued, "is formed by combining physical and spiritual energy. Nature transformation, as you know, is the active manipulation of that chakra into elemental or conceptual properties. But what I've created is different. This new chakra is produced naturally through the direct resonance of the body and spirit. There's no need to manipulate it into Yin or Yang, it emerges that way."
He let that settle in the silence.
"It sounds simple, but only those who possess exceptional control over both their physical body and spiritual energy can extract it. It's pure and high-quality, maybe even superior to ordinary chakra. I think it could be useful, especially against those weaker than you, and others who have better chakra than you."
Ay's brows furrowed. "You mean like the Tailed Beasts?"
Ron nodded. "Exactly. The chakra of Tailed Beasts is higher in quality than a human's. This is something like that. Not exactly the same, but comparable in origin. A power drawn directly from one's deepest essence."
Everyone stood in silence for a moment. Kohana, Ay, and even the Daimyo couldn't help but exchange glances, pride clearly visible in their expressions. This boy, their brother and nephew, was already exploring realms of chakra theory that most Kage hadn't even begun to consider or imagine.
What Ron didn't say out loud was perhaps even more important.
In truth, he deeply admired the Lightning Chakra Mode technique. Its ability to enhance the body and boost speed, power, and reflexes through chakra-flow augmentation was magnificent. But it had its flaws, particularly against entities like the Otsutsuki Clan members who could absorb chakra or those who had entered the Six Paths realm.
To them, chakra wasn't just ineffective, it was exploitable.
Some could absorb it outright. Others, like Madara or Obito in their Ten-Tails Jinchūriki forms, could shrug it off as meaningless. Though the physical boost of Lightning Chakra Mode still mattered, the chakra augmentation itself was needed to show its strength, thus a weakness when absorbed or useless against others.
Ron, who had long dreamed of perfecting this Super Saiyan-like aura, knew this flaw had to be addressed.
That's why, almost from birth, he began working on something fundamental; accidentally removing the chakra mark was the beginning.
This mark, inherent to all chakra users, symbolized the lingering influence of Kaguya or the Otsutsuki. It was a universal pattern, something that allowed those beings to dominate or assimilate chakra. By removing it, Ron essentially freed his chakra from their system, rendering it unique and far more difficult to absorb.
Each person's chakra, after all, carries spiritual qualities unique to the user. It's like a fingerprint of the soul. Unless you're blood-related and open yourself completely, body, heart, and mind, that chakra will resist being shared or stolen.
Now, by adding an active blend of Yin and Yang, Ron's new chakra could bypass the immunity of normal chakra possessed by beings with a six-path level chakra.
Of course, Ron had also considered Sage Mode, which was useful when fighting the 10-tailed jinchurikki Obito and Madara possessing six paths chakra. But to Ron, Natural Energy was still too wild, too dangerous, perhaps even more volatile and chaotic than the chakra of the Six Paths. He preferred a technique that elite ninjas, especially those at the shadow level, could apply now, using their own mastery over physical and spiritual strength.
Natural Energy would come later.
For now, this new chakra was his answer.
And it was a solution.