Darkness Submerges and the Eternal Eye

The Uchiha compound, once a place brimming with vitality and life, was now shrouded in deathly silence and grief. The shadow of defeat hung like a heavy, suffocating storm cloud, and the immense agony of losing Izuna pierced the heart of every clansman like a sharp blade.

The streets within the compound were deserted; the bustle and laughter of the past had long since vanished. In their place was a suffocating silence, as if the entire world had ceased to turn. The faces of the people were etched with despair and helplessness, their eyes hollow and stripped of their former luster.

The people of the Uchiha clan no longer possessed their high, fighting spirit; their hearts were occupied by the shadow of defeat, unable to break free. A fatigue that seeped into their very bones left them feeling powerless, lacking even the courage to lift their heads.

Once, the Uchiha clan took pride in their formidable strength and indomitable spirit. Yet now, crushed by the weight of defeat, they were unable to recover, having lost their former glory and dignity.

Uchiha Madara locked himself tightly in his room, spending three long days with Izuna's remains. During these three days, the world outside the room seemed cut off from him; no one dared to disturb him, and no one knew what kind of pain and torment he had endured inside.

The room was exceptionally quiet, with not a single sound escaping, save for a massive, oppressive surge of Chakra that hovered in the air, almost suffocating in its intensity. This fluctuation of Chakra was like the stillness before a storm, evoking an indescribable sense of fear and unease.

On the morning of the third day, sunlight filtered through the window, illuminating Madara's haggard face. He stood up slowly, cradling Izuna's remains, and walked toward the door step by step. The moment he opened the door, a powerful aura of Chakra rushed out, causing those nearby to tremble involuntarily.

The initial grief had vanished from Madara's face, replaced by a more terrifying, cold, and deathly silence. His eyes were unfathomably deep, as if they could pierce through a person's soul, with black flames burning within that revealed endless sorrow and rage.

Ignoring everyone, he carried Izuna's remains straight toward the underground secret chamber of Naka Shrine. Every step felt heavy, as if he were bearing the weight of the entire world upon his shoulders.

There, following ancient rituals, he removed Izuna's Mangekyo Sharingan, which had lost its light. His movements were slow and steady, carried out with a devotion that bordered on the cruel. Afterward, he approached the stone tablet passed down from the Sage of Six Paths.

With his newly awakened Eternal Mangekyou, he was finally able to decipher the deeper contents of the tablet. This process was not easy, as fusing the Eternal Mangekyou required time; he had likely just completed the transplant and was using the information on the tablet to understand and accelerate the fusion.

As he delved deeper into the evolution of the Sharingan, he gradually understood its mysteries. It turned out that the evolution of the Sharingan was not merely an increase in power, but an insight into the essence of the world. By fusing the power of his closest kin, he could obtain eternal light, a light that would make his Sharingan even more powerful.

However, the information on the tablet revealed even more astonishing secrets. Regarding the power of All Things in Nature, it seemed to be a force beyond ordinary understanding, containing endless possibilities and mysteries. And the Eye of the Moon Plan was a massive secret involving the fate of the entire world.

These pieces of information acted like a lighthouse in the darkness, guiding him along an extreme and clear path out of his endless pain and confusion. His gaze shifted from its initial deathly silence to something paranoid and fanatical, as if driven by an irresistible force.

"So that is how it is... Izuna, is this the answer you left for me at the end?" he muttered to himself, a complex surge of emotion rising in his heart. Izuna, his younger brother, was the most important person in his life. Now, he finally understood Izuna's intentions and grasped the destiny and future of their Uchiha clan.

He stroked the stone tablet and let out a low, twisted laugh, a sound filled with pain, rage, and the madness of having found a purpose.

During this period, the Uchiha clan retreated entirely. All external outposts were abandoned, all ninjas were recalled to the compound, and an absolute defensive posture was adopted. Having lost Izuna, their de facto vice-leader and strategist, and facing the uncertain state of their clan leader, the Uchiha were in a state of chaos for a time. But Madara's lingering prestige remained, and the high-ranking members could only barely maintain order, waiting anxiously for the clan leader's next command.

Uchiha Sou observed all of this silently within the clan. He could feel that Madara's Chakra aura was becoming more massive, profound, and colder—more inhuman—with each passing day. It was a qualitative change, a sign that two extreme forms of Dojutsu Power were fusing and sublimating. He also sensed the despair and unease permeating the clan.

He attempted to practice the method of Internal Seeking more deeply; the success of his interference during the battle with the "test subject" had given him confidence, but he knew it was far from enough. In the face of absolute power bought at the cost of immense pain, his progress was insignificant. He could vaguely perceive that Madara was undergoing a terrifying transformation, and the fate of the Uchiha hung upon the result of this metamorphosis.

Time passed in an oppressive atmosphere.

It was unknown how many days had passed—perhaps weeks, perhaps a month or two.

Finally, one night, an unimaginably massive and chilling surge of Chakra erupted from the direction of Naka Shrine. Though it vanished in a flash, the momentary pressure caused every Uchiha clansman possessing a Sharingan to feel a throb of fear and agitation from the depths of their bloodline!

In the secret chamber, Uchiha Madara slowly lifted his head. Within his eyes, new, complex, and profound patterns rotated slowly, emitting an eternal, inextinguishable light. Power—power more immense than he had ever known—surged through his body. Izuna's Dojutsu Power had fused perfectly with his own, leaving no trace of rejection. His vision was clearer than ever, allowing him to glimpse even more of the world's reality.

The wounds of the past seemed to be completely smoothed over by this power.

Yet, the wounds and darkness within his heart were magnified infinitely by this same strength.

He clenched his fists, feeling this power capable of changing everything.

"Hashirama... Tobirama..." he whispered to himself, his voice cold and calm, yet containing a resolve and hatred more terrifying than any roar he had ever unleashed.

"Everything is over. Izuna, just watch as I, your incompetent brother, end this thousand-year destiny for you and for all our sacrificed clansmen!"

The hawk of the Uchiha, having endured the agony of broken wings and a descent into darkness, had finally completed its ultimate transformation, ready to carry its eternal pain and power to bare its sharp fangs once more.