Naruto: Getting Observation Haki By Sacrificing The Byakugan

The sky gradually darkened, and as night arrived, a full moon hung in the sky.

Above the Hidden Rain Village, a figure soared into the sky—none other than Uchiha Madara.

At this moment, Madara had entered Six Paths Mode once again. With ease, he broke free from the Earth's gravitational pull, his gaze fixed on the full moon hanging above him.

In Six Paths Mode, Madara's speed was incredibly fast. Within moments, he had reached the surface of the moon.

But as his feet touched the moon's surface, a strange sensation washed over him. The moon felt oddly familiar, as though he had seen something similar before, but he couldn't place it.

Despite the nagging feeling, Madara pushed it aside. If he couldn't remember, it didn't matter. What mattered now was investigating the situation on the moon.

Even in his normal state, Kawaki Aoba had been able to explore the moon thoroughly, and now, in Six Paths Mode, Madara would accomplish the task much faster.

Under his investigation, Madara soon discovered the ruins of buildings. These structures seemed to belong to the Otsutsuki clan.

"There were people living here?" Madara muttered to himself, inspecting the remnants. "And it doesn't look like it was too long ago."

Having found clues about the "mastermind behind the scenes," Madara was determined to uncover more. His persistence, now fueled by this discovery, led him to dig deeper, mimicking Kawaki Aoba's earlier actions by searching the surface of the moon.

As he dug, Madara unearthed piles of corpses and bones—yet, not a single living person was found.

Madara's expression darkened. Not a single survivor on such a vast moon? Had they all moved on, or had they perished?

As he continued his search and found more corpses in various states of decay, Madara leaned toward the latter theory: they had all died.

If the time of death matched the timing of the earlier disturbances on the moon, Madara would have gone to Konoha to ask Kawaki Aoba for clarification. But with no direct answers in sight, he began to prepare to return to the ninja world in frustration.

Just as he was about to leave, a faint mental fluctuation swept through his senses.

Madara paused, then a look of excitement crossed his face. There were survivors on the moon after all.

However, the mental fluctuation was weak, distant, and elusive. If only it were stronger, he could follow the source more easily.

Expanding his perception to the limit, Madara scoured the moon for the source. But despite his best efforts, the owner of the mental fluctuation remained hidden.

Frustrated, Madara began to release his anger. His attacks shook the surface of the moon, hoping to draw the hidden figure out.

It seemed his method worked. The faint mental fluctuation appeared again.

Encouraged, Madara felt the thrill of pursuit. If he just kept attacking, surely he would find the target hidden on the moon. This method of "digging three feet" would eventually lead to the person.

As time passed, the frequency of the mental fluctuations increased. Yet, with each attack, the feeling of familiarity Madara had experienced earlier grew stronger.

After casually blasting another section of the surface, Madara suddenly stopped. His eyes widened as the realization hit him.

The moon—it was like his Rinnegan's ultimate technique, Planetary Devastation.

But the scale of this destruction was far greater than he had ever imagined. Madara had never suspected that the moon itself could be a massive version of his own Planetary Devastation technique. His Rinnegan had caused large-scale devastation before, but this was on a different level.

Wait... if the moon was a gigantic Planetary Devastation, then the faint mental fluctuation...

Madara fell silent as he stared at the shattered moon's surface. His mind began to piece the puzzle together.

The mental fluctuation appeared again, more distinct than ever. Madara hesitated, pondering whether to continue his assault on the moon's surface or wait for the source of the mental power to reveal itself more clearly.

After several days of waiting, the mental power finally coalesced into coherent thoughts.

"Who are you? How can there be my power in your body?"

Madara opened his eyes and responded, his voice carrying through his mental energy, "Your power? If you're referring to the chakra in my body that doesn't belong to me, it was forced upon me by someone who called himself the Sage of Six Paths, Otsutsuki Hagoromo. Why? Do you know him?"

There was silence. Madara didn't rush the conversation, allowing the other party time to respond.

Finally, after a long pause, the mental energy of Otsutsuki Kaguya filled his mind again.

"Hagoromo... that traitor... He is my child. You carry his aura. You must be his descendant, correct? Can you tell me what is happening in the outside world now?"

Traitor?

Madara narrowed his eyes at the word, though he was cautious not to fully trust Kaguya's one-sided account. Still, the mention of Hagoromo being her child piqued Madara's interest.

He didn't rush to judgment but instead began to slowly recount the current situation in the ninja world, though he only shared the more well-known details.

However, this was enough for Otsutsuki Kaguya, who was listening.

What she wanted to hear was not the specific situation of the ninja world at all. No matter how entertaining the stories of these insignificant beings were, what could they do? As long as she was freed, the ninja world would just be her nursery. She was only truly concerned with the few beings who could pose a threat to her.

Among them, her eldest son, Otsutsuki Hagoromo, was naturally the first to bear her wrath. However, listening to Uchiha Madara's narration, her son had already been dead for over 1,000 years.

Was this even possible?

Otsutsuki Kaguya could not even fathom it.

How could a being of the Six Paths level die so easily? It wasn't like this "little guy" he was talking to, whose chakra was entirely borrowed from others.

Knowing that her two sons were hiding, Kaguya lost interest in listening to Madara and began to think about how to escape.

She had been awakened by the aftermath of the battle between Kawaki Aoba and Hagoromo Otsutsuki on the moon. Now, with the help of this junior, she could spread her spiritual power.

If she could go a step further, escape might be possible.

As for Black Zetsu—the thing created as her "son," yet truly an incarnation of her will—Kaguya had long since given up on him.

For over 1,000 years, she had remained sealed. Listening to the little guy outside, it seemed her two sons were long gone from the ninja world.

Without the two biggest obstacles to her freedom, Black Zetsu still hadn't managed to help her escape. He had let her rot for over 1,000 years without hope. It was hard for her not to doubt his competence.

As for death, Black Zetsu was a creation of her will, possessing some of her traits. Such a being was nearly impossible to kill.

Kaguya Otsutsuki was preparing for her own salvation.

And now, the method of escape seemed to lie in the little guy outside.

"Little one, the two powers within you don't belong to you. If it weren't for them intertwining, your will would have been scattered by one of the chakra streams.

Even though they've reached a balance now, you're still in danger."

Kaguya Otsutsuki's voice entered Madara Uchiha's mind through the conduction of spiritual power.

However, his expression didn't change.

Did Madara Uchiha not believe Kaguya? Perhaps that was part of it, but the real reason was that Madara had long suspected this possibility.

To Madara Uchiha, every bit of power he gained had come at a price. This was something he had learned since he was a child, but the gift of power from the Sage of Six Paths had broken this rule.

Was this normal?

Knowing the other party was using him, Madara Uchiha didn't need to think twice. He knew that there was something behind this power.

It was the same as when he left things behind on Obito Uchiha and Nagato.

Now, Kaguya Otsutsuki revealed the hidden dangers in his body. What was her purpose? Madara Uchiha knew well.

A woman who had been sealed by her sons for thousands of years—how could she possibly help the descendant of a traitor?

Perhaps Kaguya Otsutsuki also knew her actions seemed suspicious. She immediately offered Madara Uchiha a deal.

"Although the hidden dangers in your body are great, they're not difficult for me. As long as you release me, I will completely solve this problem for you."

Kaguya Otsutsuki thought that taking back all the chakra that belonged to her would also resolve the hidden danger, right?

However, Madara Uchiha was stunned after hearing Kaguya's words. He wasn't sure whether she was pretending to be naive or if she was truly that clueless.

In the current situation, no normal person would release the other party, right?

Although Kaguya Otsutsuki was no fool, her vast strength meant that she had almost no experience in the ninja world.

Madara's vigilance toward Kaguya had reached its peak, yet he still needed to continue conversing with her in order to solve the hidden dangers within himself.

"It's impossible to release you directly. No one can guarantee that you'll keep your promise once you're free. However, we can trade in another way."

After a long silence, Madara Uchiha received Kaguya's reply: "Trade in another way? You have nothing I want."

In other words, she found him unworthy of a trade.

But Madara Uchiha smiled at this: "I may not have anything you find valuable, but that doesn't mean I don't have other bargaining chips."

Madara pointed to the moon under his feet, regardless of whether Kaguya could see it, and said, "This Chibaku Tensei is a seal on you. I will destroy part of it. As a reward, you will tell me how to solve the hidden dangers in my body. How about it?"

Madara Uchiha was making his own plans. Not to mention how much of the moon he would destroy, though he lacked the power to create a Chibaku Tensei of that scale, repairing it was no problem.

As long as he didn't completely destroy this super Chibaku Tensei, he could restore it to its original state.

Moreover, Madara Uchiha didn't actually want to release Kaguya Otsutsuki.

The one who had sealed her was the Sage of Six Paths—someone with unknown intentions, and standing behind Madara himself.

If things truly reached a breaking point, Madara Uchiha might consider being ruthless and releasing Kaguya, but it was far from his ideal outcome.

Being sealed for so long by her sons, it was clear what Kaguya would do if freed.

Even if he didn't get the solution to his body's hidden dangers, the fact that he knew about Kaguya Otsutsuki's existence made the whole expedition worth it.

Of course, it would be even better if he could resolve the hidden dangers within himself.

There was another long silence. What Kaguya Otsutsuki was thinking in her sealed space remained unknown.

Finally, after a long time, Kaguya Otsutsuki replied: "Alright, I agree to this transaction, but you'll need to destroy the seal first. In order to solve the hidden dangers in your body, my power must penetrate through the seal."

Clearly, Kaguya's only goal was to break the seal and regain her freedom.

But Madara Uchiha wasn't foolish. His body was already riddled with hidden dangers. Why would he allow this unknown woman's power to enter again?

"It's impossible for me to accept your power. If your answer remains this insincere, then we have no further deal."

Madara Uchiha's face was cold, and his resolve to defend his bottom line was unwavering.

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