Inside the tent.
Hyuga Aokawa sat cross-legged, the ground before him covered in draft papers filled with formulaic scripts.
Over the past few days, he had been like a sponge, frantically absorbing the knowledge of Sealing Techniques taught by Minato Namikaze.
Yin-Yang Seal.
Four Symbols Seal.
In his eyes, the formulas of these Sealing Techniques were gradually being dismantled into individual basic Chakra circuits.
"But this is still not enough."
Hyuga Aokawa rubbed his throbbing brow.
He closed his eyes, mobilizing the trace of spirit particles that had just recovered within his body.
This power was different from Chakra; it was more hidden, more microscopic.
His vision shifted instantly.
It was no longer the stark black-and-white perspective of the Byakugan, but a brilliant world composed of energy.
Controlling the spirit particles, Aokawa slowly probed toward his own brain.
Even though he was mentally prepared, a chill ran down his spine when he "saw" the scene there clearly.
It wasn't a simple formula.
It was a mass of tangled, dark green roots, resembling a malignant tumor.
The core of the Bird in a Cage Curse Seal did not float on the surface of the skull.
It was deeply rooted in the cerebral cortex, with even a few extremely thin tentacles tightly wound around the optic nerve and deep within the brainstem.
This was the reason Orochimaru had stopped his research.
This was also the source of the Hyuga Main Family's confidence for thousands of years.
This was not a lock at all.
This was a time bomb that had already had its fuse pulled, growing right inside the flesh.
If one followed the conventional logic of unsealing and tried to forcibly remove this mass of "roots."
Pulling one hair would move the whole body.
In that instant, the symbiotic optic nerve would be torn, and the brainstem would suffer irreversible impact.
The best outcome would be turning blind.
The worst outcome would be immediate brain death.
"These lunatics."
Hyuga Aokawa opened his eyes, the depths of his gaze cold as ice.
The so-called protection of the Byakugan was nothing more than putting an unremovable collar on a slave.
This design was intended for mutual destruction from the very beginning.
As soon as the curse Seal was damaged, the host's brain would turn into mush first.
The path of brute-force cracking was impassable.
At least not until there was Medical Ninjutsu capable of perfectly reconstructing cranial nerves.
Hyuga Aokawa let out a long breath of turbid air, feeling somewhat irritable.
He stood up and pushed aside the flap of the tent.
The night outside was deep, and the cold wind, mixed with the bloody scent of the Battlefield, hit his face, cooling his heated brain slightly.
Not far away, several Ninjas were busy.
That was the camp of the Communication Corps.
A Jonin from the Yamanaka clan was leading his subordinates in setting up a temporary Sensory Barrier.
They formed hand Seals, and specific Chakra fluctuations spread outward at a certain frequency.
"Pay attention to the frequency synchronization!"
The Yamanaka Jonin shouted in a low voice: "Filter out the noise; we need to establish a pure transmission channel."
Hyuga Aokawa leaned against a wooden post of the tent, watching absentmindedly.
Suddenly, his movements froze.
It was as if a bolt of lightning had flashed through his mind, illuminating the previously dead-end labyrinth.
Frequency.
Transmission.
Synchronization.
When the Hyuga Main Family activates the Caged Bird Seal, do they need to touch the branch family's body?
No.
As long as they form a specific "Seal," the branch family member will suffer unbearable pain, and even have their brain nerves burned out.
What does this mean?
It means the Seal in the Main Family's hands is a "transmitter."
And the Caged Bird Seal on the branch family member's forehead is a "receiver" implanted in the body.
Between the two, there exists an invisible Chakra signal connection.
Just like when a Genjutsu Ninja performs an illusion, although there is no contact.
They can link to the opponent's brain through Yin Release Chakra to produce illusions.
Since the "receiver" bomb growing in the brain cannot be removed.
Then why be obsessed with defusing it?
Wouldn't it be enough to just make it so the bomb can't receive the detonation signal?
Hyuga Aokawa's pupils contracted slightly.
This was just like radio interference from his previous world.
Even if the transmitter turns the signal power to the maximum, as long as the receiving end is wrapped in a shielding cover, the signal cannot enter.
The bomb won't go off!
No complex unsealing is needed, nor is risky nerve excision.
He only needed to add a "shell" to the exterior of the Bird in a Cage Curse Seal.
A miniature barrier capable of completely isolating Yin Release Chakra signals.
To lock this "bird" in an absolute quiet room where not even sound can penetrate.
This is—a "Signal Jammer" on a physical level.
Hyuga Aokawa's fingers tapped unconsciously on the wooden post, the rhythm getting faster and faster.
The train of thought was clear.
But new difficulties followed.
To carve another layer of isolation Seal inside his own brain, on the outer layer of this already crowded curse Seal.
This was no different from carving "Along the River During the Qingming Festival" on a grain of rice.
Moreover, this Seal must not interfere with the normal operation of the brain; it must only target specific Chakra frequencies.
While the Yin-Yang Seal and Four Symbols Seal were exquisite, they leaned more toward "suppression" and "storage."
They weren't delicate enough, nor did they possess precise filtering functions.
To complete this idea, he needed higher-precision "Barrier Ninjutsu" and top-tier theories regarding "Chakra isolation."
Looking at the entire Ninja World, there was only one person who could play with Sealing Techniques to such an extent, even reaching the spatial level.
The heir to the Sealing Techniques legacy of the Uzumaki Clan.
The current Battlefield commander-in-chief.
Minato Namikaze.
Hyuga Aokawa turned and ducked back into the tent.
He quickly destroyed all the draft papers on the ground, leaving only a blank scroll.
Since even Tailed Beast Chakra could be isolated, and the Chakra of a husband and wife could be sealed within Naruto for over a decade.
Isolating a signal shouldn't be a problem, right?
...The next morning.
Outside Minato Namikaze's tent, Hyuga Aokawa stood quietly.
Before long, the flap was lifted.
Minato Namikaze, wearing his Ninja flak jacket, looked slightly tired, clearly having spent another sleepless night.
Seeing Aokawa, he smiled gently.
"What is it, Aokawa? So early."
"Regarding that Sealing Technique..."
Aokawa took a step forward and handed over the scroll in his hand, his tone sincere and urgent.
"While I was deducing it, I found a very interesting problem. If I don't solve it, I really won't be able to sleep."
Minato Namikaze took the scroll and scanned it casually.
His originally gentle gaze froze instantly.
He snapped his head up, his azure eyes bursting with an astonishing light.
"This is... you want to block a specific frequency of Chakra?"
"Yes."
Hyuga Aokawa nodded, pointing to the unfinished ring on the scroll.
"I was thinking, if a certain kind of Chakra could be isolated like sound, would it be possible to..."
He paused, not finishing the thought.
Minato Namikaze was also a smart man; there was no need to spell it out.
This was hardly just wanting to learn Sealing Techniques.
This was clearly... "Come in."
Minato Namikaze stepped aside, his tone becoming serious and earnest.
"Tell me your thoughts just now in detail."
more chapter available in p@tréøñ(Atoki_29)