Chakra Waves: White Nothingness Barrier

After creating the Primordial Scripture, Uchiha Hara had barely had time to celebrate before he suddenly noticed a problem.

A large amount of chakra—Primordial True Qi—was stored in his dantian. What if a sensory ninja detected it?

An ordinary five-year-old child possessing chakra reserves comparable to a Chunin, Jonin, or even Kage level—it would be like a beacon in the darkness. Avoiding attention would be impossible.

Someone might even suspect that a tailed beast had been sealed inside his stomach!

Besides, Uchiha Hara felt that it was better if he alone knew such an excellent cultivation method.

The people of the Ninja World lacked creativity and were accustomed to existing chakra systems, which was a good thing. He did not want his unconventional ways to "inspire" someone with ulterior motives and draw unnecessary attention and investigation.

"I need to find a way to block sensory perception." He made up his mind.

To block it, he first needed to understand how it worked.

He withdrew from the Demon Refining Pot's space and, in the real world, tried using the Chakra Sensing Technique he had just learned.

His fingers lightly touched the ground, and his spiritual power spread outward.

Yet within the range of his returning senses, there was only "silence"! The ninja chakra signatures that should have dotted the area like countless stars were nowhere to be sensed!

"How is that possible?" Uchiha Hara froze, then immediately realized what had happened.

What he had used just now was the strand of milky-white Primordial True Qi in his dantian to perform the sensing technique.

He immediately switched energy sources, using ordinary pale-blue chakra that had just been extracted from his body cells and spirit, before being refined by the Primordial Scripture, and cast the sensing technique again.

In an instant, his perception surged back like a tide! Centered on himself, chakra lights, bright and dim alike, became clearly visible throughout the Uchiha Clan Grounds and even farther away in Hidden Leaf Village. Like starlight in the night sky, they outlined a map of the ninjas' distribution.

"So that's it!" The enormous difference between the two sensing results let Uchiha Hara grasp the key at once.

Afraid that his guess might be wrong, Uchiha Hara found the Chakra Sensing Technique scroll and read through notes left behind by previous practitioners. In the end, he confirmed that his speculation was correct.

"Every object constantly radiates energy outward, and chakra is no exception. It continuously emits special fluctuations! The principle of the Chakra Sensing Technique is to use spiritual energy to create a chakra fluctuation receiver, one specifically designed to receive fluctuations at that frequency!"

At its core, this was no different from eyes receiving light to form images.

Then why could he not sense other people's chakra when using Primordial True Qi?

Uchiha Hara speculated, "Everyone's chakra previously contained the imprint of Kaguya Ōtsutsuki's will, causing the frequencies of the fluctuations they emitted to be highly consistent, all on the same 'channel.' My Primordial True Qi, however, has been cleansed of Kaguya's Will and bears my personal imprint. The frequency of the fluctuations it emits has already departed from that shared 'channel'!"

It was like a radio, which could only receive broadcasts on specific frequencies.

His Primordial True Qi operated on a different frequency from mainstream chakra, so naturally they could not sense each other.

This discovery delighted him beyond measure!

He had originally worried that the true qi accumulated in his dantian would be discovered by sensory ninjas and had even considered using the Demon Refining Pot to forcibly conceal it.

Now, it seemed that such trouble might not be necessary at all!

"Since I can't sense other people's chakra using Primordial True Qi, then when others use the Chakra Sensing Technique, they naturally won't be able to sense the Primordial True Qi in my dantian either!"

This meant he did not need to specifically develop a concealment technique against the Chakra Sensing Technique.

He could even try covering the surface of his body with a thin layer of Primordial True Qi, forming a natural "frequency invisibility cloak" that would block external chakra sensing!

"This method is brilliant!" Uchiha Hara felt his mood brighten.

A troublesome problem had been solved in such an unexpected way.

However, he soon calmed down.

This method could only block ordinary Chakra Sensing Techniques. Against another famous scouting method—the Byakugan—it would likely prove inadequate.

"I still need to figure out how the Byakugan works."

Though he did not possess the Byakugan, he could make reasonable deductions.

First, activating the Byakugan consumed a large amount of chakra.

That chakra could not simply disappear into thin air, nor could it have merged into the eyes.

Therefore, it was highly likely that the Byakugan converted it into some special form of energy and emitted it, perhaps something like X-rays, electromagnetic waves, or another unknown form of "scouting wave." For now, he would call it a "Byakugan Ray."

When such Byakugan Rays encountered objects, they would reflect. Once reflected back into the eyes, the eyes would present the field of vision projected by those Byakugan Rays.

The proof was that the Byakugan had a clearly defined visual range.

For ordinary main-family members, it was around one kilometer. That precisely showed that the Byakugan did not merely receive external information, like eyes receiving light. Instead, it had an active detection process of "emission → reflection/penetration → reception," making it closer in principle to radar or sonar.

If the Byakugan only received signals without emitting them, there was no reason for its detection range to be so short. Ordinary eyes were passive receivers, after all, and ordinary people could easily see five or six kilometers away.

"If that's the case, then my Primordial True Qi 'frequency invisibility' method is useless." Uchiha Hara frowned.

Since chakra could reflect Byakugan Rays, Primordial True Qi, being a form of chakra, would naturally reflect them as well.

And because all his Primordial True Qi was concentrated in his dantian, it would instead form an exceptionally clear region filled with enormous energy in the Byakugan's vision, making it even more conspicuous!

"Then what if I take another approach? Gather a layer of ordinary chakra containing Kaguya's Will around my abdomen, like camouflage netting, wrapping up the Primordial True Qi within and blocking the Byakugan Rays?"

But he quickly rejected the idea. Why would he deliberately gather a mass of chakra around his stomach for no reason? That alone would be an obvious giveaway.

He racked his brains and nearly gave up. After all, the Hyuga Clan had strict clan rules prohibiting the casual activation of the Byakugan to pry into others' privacy. Otherwise, they could never have been accepted by the other clans during the village's founding.

The fact that Hidden Cloud Village ninjas had been able to reach the vicinity of the Hyuga Clan also indirectly proved that the Byakugan was not kept active at all times.

"But what if?" Uchiha Hara did not dare gamble.

What if a Hyuga Clan member got carried away during sparring at home and instinctively activated the Byakugan?

What if a Hyuga Clan child used the Byakugan during combat practice at the Ninja Academy?

A single second of carelessness could expose his secret.

After thinking it over, he came up with two solutions that were not really solutions:

First, find some special material capable of naturally blocking the Byakugan's sight and wrap it around his abdomen. But that would look strange, and such material would be difficult to find.

Second, store the Primordial True Qi he had painstakingly cultivated inside the Demon Refining Pot as well. But that ran contrary to his original purpose of using true qi to nourish his body and extend his lifespan.

"Neither is ideal..." Uchiha Hara felt somewhat irritated.

Just as he was about to get stuck in a dead end, a thought flashed through his mind like lightning—

Sealing Jutsu! Barrier Jutsu!

The Ninja World had a power system so absurdly effective that it could seal Amaterasu's Flames, Impure World Reincarnation, and even Kaguya Ōtsutsuki. Could it really lack a concealment technique specifically meant to counter the Byakugan?

He immediately returned to the library within the Demon Refining Pot's space and pulled out every scroll related to Sealing Jutsu and Barrier Jutsu.

Sure enough, among Uchiha Jiang's collection, he found his target—White Nothingness Barrier! The name alone made its specific counter to the Byakugan obvious!

The Uchiha Clan's enemies had never been limited to the Senju Clan; they also included the Hyuga Clan.

And perhaps because both were dojutsu clans, the Uchiha Clan's research into the Hyuga Clan even surpassed their research into the Senju Clan.

For example, this White Nothingness Barrier had been specifically developed by Uchiha Clan ancestors to counter the Byakugan's ability to reveal the map.

Before this barrier came into existence, although the Uchiha Clan possessed great individual combat strength, the Byakugan's individual combat strength was not weak either. The Byakugan countered genjutsu, Revolving Heaven countered Fire Release, and the Byakugan could scout in advance, making intelligence nearly transparent. It was common for them to gang up on fewer opponents.

In battles against the Hyuga Clan, the Uchiha Clan lost far more often than they won.

Only after this barrier was created did the balance between the Uchiha Clan and the Hyuga Clan begin to shift.

The principle of the White Nothingness Barrier was to use chakra to create a chakra gravitational field that distorted chakra fluctuations coming from every direction.

If Byakugan Rays were compared to light, then the White Nothingness Barrier was like a black hole, distorting that light by distorting space.

Of course, the White Nothingness Barrier could not do something as terrifying as warp space. It only distorted chakra waves.

It was similar to how high temperatures affected light by distorting the air.

As a result, when Byakugan Rays encountered the White Nothingness Barrier, they would curve around it, naturally making whatever it protected invisible.

Because of the complexity and suddenness of battle, as well as the need to keep intelligence confidential, this barrier had been widely developed and used as soon as it was created. It had spawned countless variations, including large barriers covering clan grounds and smaller ones that could be applied to boxes, clothing, or even the human body.

Uchiha Hara even found a miniature White Nothingness Barrier that could be inscribed onto fabric or directly applied to the body.

Although Uchiha Hara did not understand Sealing Jutsu or Barrier Jutsu, merely copying a ready-made White Nothingness Barrier pattern provided by others was no problem.

Following the scroll's instructions, he carefully inscribed the miniature barrier formula onto the inner lining of the clothing over his abdomen with chakra, then injected a small amount of chakra to activate it.

An almost imperceptible interference field targeting specific fluctuations quietly formed, instantly covering his dantian.

"It worked?" Uchiha Hara was somewhat surprised. Normally, wouldn't cultivators have to ruin hundreds of talisman papers before learning how to draw a talisman?

How had he succeeded on his first try?

Or was this chakra rune simply that easy?

After thinking about it, Uchiha Hara leaned toward the idea that the difficult part of Sealing Jutsu was understanding the principles, while drawing sealing symbols was not difficult. After all, even Jiraiya could learn it.

After some simple testing, he found that this miniature barrier consumed extremely little energy and could be maintained for a long time.

But a new problem followed: maintaining the barrier required continuously spending a trace of mental focus. Though weak, it would become a mental burden over time. And that trace of focus had to be sustained—what if he fell asleep? What if he exhausted himself on the battlefield and lost consciousness, causing the barrier to fail?

"I must turn maintaining the barrier into an instinct!" he thought fiercely, but that would be no easy task. It would take at least a month of continuous effort.

"Looks like this is only a temporary measure."

Uchiha Hara looked at the barrier rune on his abdomen and secretly resolved, "Once I have a chance to obtain the Byakugan and thoroughly study its principles, I'll definitely develop a simpler, more lasting concealment secret technique that can even activate passively!"

Still, learning about the White Nothingness Barrier and the breadth and depth of Sealing Jutsu and Barrier Jutsu had sparked a strong interest in him.

Since chakra fluctuations could be distorted, could he create a barrier that distorted ninjutsu?

Perhaps even block ninjutsu entirely and make some sort of anti-magic field.

He glanced at the Sealing Jutsu scrolls that recorded complex runes and principles, knowing that this was another new field requiring a great investment of time and effort.

"One step at a time." He steadied himself. "First solve the immediate danger, then plan for the future."

At least for now, he no longer had to worry about the secret in his dantian being easily discovered.