Matatabi tried to flatter Yuzuru without the slightest psychological burden.
To it, Yuzuru was nothing short of a benefactor.
Despite possessing more than enough strength to do whatever he pleased to it, Yuzuru had shown remarkable tolerance.
The reason Matatabi could now bask lazily in the sun, breathing fresh air, was entirely thanks to him.
In fact, Matatabi felt even freer than before it had ever been sealed.
Back then, because of its overwhelming power, it was constantly harassed by shinobi—an exhausting existence.
Now, not only could it enjoy the rich, varied life and food of humans, but everywhere it went, people respectfully addressed it as "Lord Matatabi"…
So toward Yuzuru, Matatabi's heart was full of admiration.
Yuzuru chuckled, reaching out to stroke Matatabi's body—it felt just like petting a cat.
Then he gathered a Rasengan in his palm.
"Matatabi, this is a ninjutsu I created based on the Tailed Beast Bomb."
"And if you inject different chakra natures, the Rasengan can transform into different forms."
"For example…"
Yuzuru stood up, raising his arm high.
In the next instant, the Rasengan swelled, and massive wind blades spun rapidly around its surface.
Samui, Yugito, and Mabui involuntarily retreated dozens of meters, collapsing onto the ground in terror.
From the Rasengan in Yuzuru's hand, they felt a pressure that shook their hearts.
"Wind Release: Rasenshuriken!"
He hurled the technique into the center of the lake, where it exploded.
In an instant, the entire lake roiled violently, and a towering column of water shot several dozen meters into the sky.
A fierce gale followed, whipping Yuzuru's hair and clothing.
"So strong… this is Lord Yuzuru's power?"
Samui and the others were stunned by the devastation left in the wake of the Rasenshuriken.
They could hardly imagine humans wielding such destructive force.
Even compared to the Tailed Beast Bomb Matatabi had unleashed moments ago, the difference wasn't much.
Most astonishing of all, Yuzuru still looked calm, breathing steadily—clearly nowhere near pushing himself.
Even Matatabi couldn't help but praise him.
"Lord Yuzuru, you're truly a genius to create a forbidden jutsu of this caliber."
Yuzuru waved his hand.
"This still isn't the final form I have in mind. The power is lacking."
Hearing this, Matatabi was speechless.
This level of power still wasn't enough?
"So I want to ask—how exactly is a Tailed Beast Bomb formed?"
Matatabi thought for a moment before replying.
"We tailed beasts are born with Yin Release chakra and Yang Release chakra."
"As long as we compress and mix the two in a certain ratio, we can create a Tailed Beast Bomb."
"That ratio is roughly two to eight."
After listening, Yuzuru frowned.
"That's what confuses me."
"I can't produce Yin–Yang Release chakra. What am I supposed to do?"
Aside from the Ōtsutsuki—Kaguya, Hamura, and Hagoromo—no human in the ninja world could use true Yin–Yang Release.
Yuzuru estimated that only by ascending to the Six Paths level could he wield it.
But by then, the Truth-Seeking Orbs generated through Yin–Yang Release would vastly surpass any Tailed Beast Bomb in power.
"I see…"
Matatabi furrowed its brows in thought, then asked,
"Lord Yuzuru, in your ideal vision, what should the final form of that Rasenshuriken be?"
Yuzuru picked Matatabi up, lowered his head, and activated his Mangekyō Sharingan.
"See for yourself."
In the illusion, Matatabi witnessed the image in Yuzuru's mind—Naruto unleashing the Great Spiralling Ring.
When the vision ended, Matatabi's eyes lit up.
"Lord Yuzuru, I've got it!"
"Do you have both Yin and Yang properties inside you?"
Yuzuru nodded.
"Yes. Why?"
He originally possessed only Yin, but after gaining the Uzumaki Sage Body, he also carried Yang.
But possessing both properties didn't mean he could use true Yin–Yang Release.
"You can try adding Yin-nature transformation and Yang-nature transformation into the Rasenshuriken."
Yuzuru froze—then smacked his forehead.
Of course! Why hadn't he thought of that?
Even if he couldn't produce Yin–Yang Release itself, nothing prevented him from mixing Yin and Yang transformations into his chakra.
Kakashi once explained chakra nature transformations:
the Nara's Shadow Imitation Technique, the Akimichi's Multi-Size Technique, medical ninjutsu…
These were all derived from Yin or Yang transformations.
Yuzuru suspected these clans combined Yin or Yang properties with their chakra to create unique powers.
If so, then by infusing Yin and Yang transformations into the Rasenshuriken, he might very well produce the Great Spiralling Ring.
The more he thought about it, the more certain he became.
He hugged Matatabi tightly and took a deep breath.
"Matatabi, you've helped me a great deal."
With that, Yuzuru's figure flickered and vanished.
Matatabi stared blankly for a long moment before murmuring shyly, "It was my honor…"
Before long, a massive sphere of light erupted atop a distant mountain, its thunderous roar echoing across Cloud Thunder Gorge.
Seeing an entire mountaintop vanish in an instant, Samui, Yugito, and Mabui immediately ran toward the Raikage Building.
As expected of Lord Yuzuru—even his training was terrifyingly destructive.
They had to notify the Raikage immediately, or panic would spread for sure.
—
—
"As expected, directly copying the Tailed Beast Bomb ratio doesn't work."
Standing atop what remained of a mountain, Yuzuru began another attempt.
With the Sage Body, his healing was monstrous; and with Kamui, he could phase out the moment something went wrong.
Self-inflicted injuries weren't a concern.
After 1,863.5 hours and 9,311 attempts—refining the Yin–Yang ratio down to two decimal places*—Yuzuru finally held a sphere of black, destructive chakra in his hand.
"At last… Great Spiralling Ring!"