Naruto: Getting Observation Haki By Sacrificing The Byakugan

Hashirama Senju had just remotely commanded his wooden construct to act autonomously when he prepared to confront Nagato directly.

However, what greeted him was an unassuming yet devastating Shinra Tensei.

In an instant, Hashirama was hurled backward with as much force as he had charged in with. Had it not been for the resilience granted by Sage Mode, his Edo Tensei body might have shattered into pieces—just as Tobirama Senju's had earlier.

Watching his brother get flung back by Nagato's repulsive force, Tobirama gritted his teeth and turned to Danzō Shimura, who stood behind him.

> "We can't take down this Rinnegan-wielder today. Danzō, my brother and I will cover your retreat. Go—now!"

For the second time in his life, Tobirama prepared to sacrifice himself for a disciple's survival.

But before Danzō could even respond, Nagato had already closed the distance.

Tobirama made no attempt to dodge. Covering the retreat meant exposing himself—he couldn't risk revealing Danzō's position. Using the Flying Thunder God Technique to escape was out of the question.

He thought, I'm already a reanimated corpse—what does it matter if I 'die' again? He even considered unleashing his Mutually Multiplying Explosive Tags, hoping to take Nagato down with him.

But Nagato's next move caught him off guard.

A black chakra rod pierced straight through Tobirama's chest. At first, he dismissed it—Edo Tensei bodies felt no pain, and the injury seemed insignificant.

Then he realized something was wrong.

He tried to mold chakra—but nothing. His body felt like lead.

Worse still, Nagato's hand clutched his head.

The Rinnegan pulsed. This time, Nagato used the Human Path.

Tobirama, chakra suppressed and immobile, couldn't resist. The overwhelming pull felt as if his very soul was being torn out.

It wasn't just a feeling—it was real. His soul was being forcibly extracted from his Edo Tensei vessel.

Not far off, Danzō watched in horror as his teacher's soul began to peel away. His mind raced.

Could Izanagi protect me from this? Could it restore my soul…?

But even he wasn't confident in the answer.

Across the battlefield, Hashirama, still recovering from the earlier blast, surged forward the moment he saw Tobirama's soul being attacked.

His brother was already dead—but to let even his soul be destroyed? That was something he, as an elder brother, could never allow.

Yet in his weakened Edo Tensei state—at barely a fraction of his original strength—even with Sage Mode, he couldn't reach Nagato in time.

Tobirama's soul fully separated from his body. Nagato was ready to crush it.

But just then—a figure appeared beside him.

Nagato froze. Who is this? When did he get here? Why didn't I sense anything?

The stranger ignored him. Instead, he reached out and grasped Tobirama's soul. The divine light of the Sheep Talisman enveloped it, stabilizing the fragile spirit.

At the same time, the Human Path's grip on Tobirama's soul began to loosen.

Now, Nagato looked directly at the newcomer—Kawaki Aoba.

And then, shock struck Nagato again. He felt it—the overwhelming pressure of another ocular power. When their eyes met, he reflexively looked away.

It was the Tenseigan.

Even that split-second reaction filled Nagato with shame and fury.

> "Shinra Tensei!"

Furious, Nagato unleashed his repulsive force with full strength.

> "Shinra Tensei!"

Kawaki Aoba countered with the same jutsu—matching Nagato's force with his own.

The resulting collision compressed the air between them, detonating with a thunderous boom. The shockwave flung Danzō away like a ragdoll.

The opposing repulsive forces held each other in perfect balance—neither overpowering the other.

One second.

Two seconds.

Three seconds…

The mutual clash of repulsive forces sent violent shockwaves through the air, distorting the atmosphere. Before four seconds had passed in their deadlock, one figure faltered—blasted backward by an overwhelming force.

That figure was none other than Nagato, wielder of the Rinnegan. He had lost the contest of Shinra Tensei—and not just lost, but thoroughly overwhelmed.

With a thunderous crash, Nagato slammed into the shattered ruins behind him, coughing up a mouthful of blood.

"Shinra Tensei...? You can use it too? And those eyes—what are they?"

Despite being flung a great distance, Nagato's voice still reached Kawaki Aoba's sharp ears.

Kawaki Aoba gave a quiet chuckle. "Just a basic application of gravitational and repulsive force. What's so surprising? As for my eyes—you don't need to know the details. Just understand that they are not inferior to your Rinnegan."

"Not inferior to the Rinnegan? Bold claim," Nagato said, forcing himself upright. "Then I'll test them myself."

A faint smirk curled at the edge of Kawaki Aoba's lips. "What I meant is—you're nowhere near qualified to be my opponent."

Nagato's rage surged. But before he could act, Kawaki Aoba calmly raised a hand, and in his palm formed a pitch-black sphere.

The moment Nagato laid eyes on it, his expression darkened. His Rinnegan instantly grasped the orb's nature. It was chakra—yet beyond conventional chakra. It was a mixture of Yin and Yang release, similar in essence to the black rods he used, but vastly superior in quality.

Danger.

Extreme danger.

This was no ordinary technique.

Truth-Seeking Orb.

An ability typically reserved for those who had attained Six Paths power—such as the Sage of Six Paths or his chosen inheritors.

But the Tenseigan broke the rules of chakra and ascension. Through it, a shinobi could manifest Truth-Seeking Orbs before reaching true Six Paths status. And Kawaki Aoba had done just that.

The black orb in his palm twisted and spun, reshaping itself into a miniature silver whirlwind.

The swirling storm resembled a silver dragon, coiled gracefully in his hand—delicate, beautiful, but emanating catastrophic danger.

Nagato felt cold sweat slide down his temple. The threat hadn't passed—it had intensified.

Watching his shaken opponent, Kawaki Aoba smiled gently. "I told you—you're not ready to face me. But if you can survive this... I'll acknowledge you."

He raised his hand.

"Remember this technique's name—Silver Wheel Reincarnation Explosion."

The silver vortex shot forward, transforming instantly into a roaring storm. It tore through the air like a divine calamity, bearing down on Nagato with devastating force.

It was reminiscent of the Sand-Sand Fruit's sandstorm in appearance, but in power, it was on another plane entirely.

The silver storm swallowed Nagato whole, the terrain beneath him crumbling into nothingness. Its destructive force far exceeded that of any natural disaster. Even by the standards of Truth-Seeking techniques, this was extreme—evidence that Kawaki Aoba had stepped into a realm far beyond conventional shinobi.

Not long after the blast subsided, another legendary presence arrived—Hashirama Senju, the First Hokage.

Across the field, he saw Kawaki Aoba, who had just subdued Nagato, standing alone—yet still holding control over the reanimated soul of his brother, Tobirama Senju.

Hashirama's expression darkened with concern.

Unlike Nagato, who was a product of Rinnegan transplantation and had barely touched the Super Kage threshold, Kawaki Aoba radiated strength on par with Hashirama in his prime—perhaps even greater.

Meeting Hashirama's gaze, Kawaki Aoba smiled and offered a polite nod.

"First Hokage, it's an honor. I am Kawaki Aoba, Hokage Assistant of the village."

Hashirama blinked in surprise, then broke into a wide grin. "Hokage Assistant? So young—and already so strong. Honestly, I'm not sure I could even beat you."

He bowed deeply, a full ninety degrees. "Thank you—for helping Tobirama and protecting his soul. I'm truly grateful!"

The sudden gesture caught Kawaki Aoba off guard. Though he'd heard of Hashirama's eccentricity, even he wasn't prepared for this.

Still, considering Hashirama once bowed to a table full of Kage at a summit, maybe this wasn't so surprising after all.

"Please, First Hokage, there's no need," Kawaki said with a wry smile. "It was my duty to protect the Second Hokage."

Even as he spoke, Kawaki Aoba's mind was stuck on the image of the legendary First Hokage bowing like a student.

He shook the thought off and turned his attention toward a different matter—Danzo Shimura.

During Kawaki Aoba's brief battle with Nagato, Danzo had recognized him—and fled.

But it didn't matter.

Even with Danzo's speed, escaping his sensory range in such a short time was impossible.

"I'll take my leave now. There's still a rogue ninja I must apprehend," Kawaki said.

"Rogue ninja?" Hashirama echoed, puzzled. Then realization struck. He knew who Kawaki meant.

Danzo Shimura.

Tobirama's disciple.

Hashirama's face tightened in confusion and sadness. He wanted to ask more—why was Danzo a rogue? What had happened?

But before he could speak, Kawaki Aoba vanished in a blur of speed.

"..."

Hashirama stared in silence. He still had so many questions—and more importantly, Tobirama's soul was still with Kawaki Aoba.

Determined, Hashirama took a step to pursue—but at that moment, his body crumbled to ash.

The Impure World Reincarnation was undone.

From the shadows, a small white snake peeked out, its tongue flicking as it silently observed. Then it turned and slithered in the direction where Nagato had vanished.

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