Chapter 132 – S-Rank Ninjutsu
After leaving the Tsuchikage's office, Ōnoki ordered Ishiro not to leave the village until he fully developed the Rasengan.
Exhausted, Ishiro first returned to his small house and rested for the night.
When his chakra and stamina were fully restored the next morning, he bought a batch of balloons and began training following the method described by Jiraiya in the original story.
Thanks to his exceptional chakra control, the process went even smoother than Ishiro had anticipated.
He hardly used any of the balloons he had bought.
After just two or three attempts, Ishiro successfully completed the training for the Rasengan.
Due to the chakra consumption being quite heavy, he simply created a miniature Rasengan about the size of a ping-pong ball to conserve chakra.
Then, Ishiro wrote down the training method, his understanding of the Rasengan, and even speculations about adding chakra nature transformations into it, compiling it all into a scroll.
After finishing, he headed straight to report to Ōnoki.
At that moment, Ōnoki was reading intelligence reports from the frontlines.
Seeing Ishiro return so quickly surprised him.
Ōnoki had assumed Ishiro would be wholly focused on developing the Rasengan and had even told him he could requisition supplies directly from logistics.
Ishiro, sensing Ōnoki's confusion, casually said:
"Lord Tsuchikage, I've completed the training.
Here's the method for the Rasengan."
He handed over the freshly written scroll.
Ōnoki didn't take it immediately.
He stared at Ishiro for a moment, stunned.
Are you kidding me?
An A-rank seal-less ninjutsu... developed this quickly?
Ōnoki had mentally prepared to sideline Ishiro for one or two months!
Still, trusting Ishiro's character, Ōnoki accepted the scroll and began reading carefully.
Once he finished reading Ishiro's notes and explanation of the Rasengan's core principles, he finally understood why Ishiro had succeeded so quickly:
"So the greatest difficulty lies in chakra control," Ōnoki muttered.
"Someone, call the three advisors to my office."
The ANBU nearby immediately moved.
Ōnoki then looked at Ishiro and asked,
"You mentioned balloons in your notes.
Do you have any with you?"
Ishiro blinked, then said,
"Yes,"
pulling out a large pile from his scroll storage.
"I originally thought training would take a long time, so I prepared a lot of balloons.
Turns out... I succeeded very easily, so I had plenty left over."
Ōnoki nodded, took a balloon, and began attempting the Rasengan training right there.
The first try failed.
But on the second attempt, Ōnoki succeeded in forming the chakra sphere!
At that moment, the three advisors arrived.
Their offices were close, so they came quickly.
Seeing Ōnoki practicing with the balloon stunned them.
Ōnoki immediately ordered,
"Head to the training grounds."
Without waiting for a response, he left the office.
The three advisors quickly realized something big was happening.
They turned to Ishiro for confirmation.
Ishiro simply nodded and said,
"The Rasengan has been successfully developed.
Lord Tsuchikage has already learned it."
Hiss—
The advisors gasped and hurried after Ōnoki, with Ishiro following behind them.
Before long, Ōnoki, the three advisors, Ishiro, and an ANBU squad arrived at an empty training field.
Ōnoki looked extremely eager.
He walked up to a giant boulder, extended his right hand, and in an instant, formed a chakra sphere slightly smaller than a soccer ball.
Following Ishiro's description of Minato's combat method,
Ōnoki pressed the Rasengan against the boulder.
BOOM!!!
The giant boulder shattered instantly, sending fragments flying everywhere.
Everyone watching drew sharp breaths.
"It really is seal-less ninjutsu...
And the power... definitely A-rank!"
Ōnoki turned and looked at Ishiro.
"Ishiro, you've learned it too.
Show us."
Embarrassed, Ishiro reluctantly walked to another boulder, extended his right hand, and slowly formed a tiny chakra ball.
In the awkward silence of the crowd, he pressed it onto the stone.
Boom!
The sound wasn't bad—
but the impact was vastly inferior to Ōnoki's.
Everyone silently thought:
If Ishiro had demonstrated first, would we even have considered this an A-rank technique...?
Probably not!
Ōnoki and the others quickly realized the problem:
Ishiro's chakra reserves were simply too low.
Not wanting to embarrass Ishiro further, Ōnoki directly said:
"Good job.
Come with me afterward to choose an S-rank jutsu."
Ishiro, still blushing slightly, nodded quietly.
Ōnoki handed the Rasengan scroll to the advisors, instructing them to arrange for suitable ninjas to study it.
Then, he personally led Ishiro to the secret vault.
---
This was Ishiro's second time entering the vault.
The first time had been to learn an S-rank sealing technique.
However, sealing techniques held a lower status than true ninjutsu.
Back then, Ishiro had been supervised by a jōnin.
Now, coming to study an S-rank ninjutsu, he was personally accompanied by the Tsuchikage himself.
Inside, Ōnoki explained:
"Our village doesn't have many S-rank ninjutsu.
Honestly, based on your chakra reserves, it's a bit early for you to learn one."
"But with your excellent chakra control,
it's good to get exposed early."
Ōnoki retrieved a massive scroll, turned his back to Ishiro,
performed a complex series of seals,
then unlocked the protective jutsu.
Opening the directory, he said:
"Look through it.
Pick one that suits you."
Ishiro glanced at the index:
"...Whoa, that's a lot."
There were over a hundred high-level techniques and sealing jutsu recorded here.
Among them, at least twenty were true S-rank ninjutsu.
Ōnoki shook his head and said:
"Although there are twenty or so S-rank techniques,
you'll see the problem once you look carefully."
Ishiro looked—and immediately understood.
Many S-rank techniques had special training requirements.
For example:
Dust Release: Detachment of the Primitive World Technique
Dust Release: Boundary Stripping Technique
Both required mastery of Dust Release—a bloodline limit.
Meaningless for Ishiro.
There were several others similarly requiring bloodline abilities.
Other techniques required massive chakra reserves—something only the Uzumaki clan could satisfy.
Still others required bizarre conditions, like special affinity to Earth element.
After careful selection, Ishiro realized—
None of them were truly suitable for him.
Probably, Ōnoki had expected Ishiro to choose Ultra Light-Weight Boulder Technique—an S-rank upgrade of Light-Weight Boulder.
Though its exact effects were unclear, it was unlikely to be disappointing.
In the original story, Ōnoki and Gaara used it to block Uchiha Madara's meteorite.
However—
Instead of following expectations, Ishiro picked another strange jutsu.
This technique required an unusual sensitivity to gravity.
Thanks to learning Light-Weight Boulder Technique, Ishiro barely qualified.
The jutsu had no name.
Its description was vague:
after casting, it would pull surrounding objects toward the caster.
Ishiro immediately thought:
Isn't this the Rinnegan's Banshō Ten'in (Universal Pull)?
Pointing to the technique, Ishiro asked:
"Lord Tsuchikage, what's the origin of this one?"
Ōnoki shook his head:
"I don't know.
My teacher died suddenly.
He didn't pass on many secrets."
"I only know that no one's ever succeeded in mastering this jutsu."
Seeing Ōnoki's puzzled look, Ishiro explained:
"I'm on good terms with Nagato.
He's even given me a few C-rank jutsu before."
"If I ask him for help, I think he wouldn't refuse."
"And with his help,
I might really be able to learn this technique."
Ōnoki thought for a moment, then nodded:
"Very well.
This technique consumes relatively little chakra among S-rank jutsu.
If you can master it,
it will indeed suit you."
Ōnoki opened the scroll to the correct page,
unsealed the technique,
and allowed Ishiro to study it.
Ishiro carefully memorized the entire description,
taking nearly an hour to commit it to memory.
Afterward, Ōnoki resealed the technique and re-locked the scroll.
Finally, as per protocol, he applied a sealing jutsu onto Ishiro's body—
to prevent the technique from falling into enemy hands if he died.
---
Leaving the Tsuchikage's building, Ishiro's heart was in turmoil.
From the description, he gleaned hints about the original user of the jutsu.
And based on that—
Ishiro developed a bold hypothesis:
This nameless gravity jutsu probably originated from a Ōtsutsuki—
perhaps even one possessing the Rinnegan or the Tenseigan.
Thinking back to the techniques surrounding it in the scroll:
The technique before it: summoning a giant stone golem.
The technique after it: forming a massive chakra sword to slay enemies.
The next: a technique related to manipulating souls.
Placed together, these jutsu resembled abilities linked to the Tenseigan.
Though the Tenseigan and Rinnegan differed in form,
their essence shared many similarities.
After comparing the differences between the two,
Ishiro concluded:
This gravity technique likely originated from the Tenseigan.
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