Pure Land Reincarnation

As the Sasuga organization gradually stepped onto the right track and various plans progressed steadily, Uchiha Sakuya threw himself into endless research and development. The deepest part of the base, a secret chamber filled with sealing formations, scrolls, and experimental equipment, became the place he frequented most outside of combat.

The Eighty Gods Mirror granted him not only the ability to copy, but also ultimate insight into the fundamental composition of ninjutsu and genjutsu. He was no longer satisfied with mere copying; he began to dismantle, analyze, reorganize, and even create.

The Pinnacle of Genjutsu:

Immersing himself in the microscopic world of spirit and chakra, and combining the essence of the Uchiha clan's inherited genjutsu, the forbidden knowledge obtained from the Book of Sealing, and his observations of genjutsu specialists like Shen, he pioneered several terrifying new types of genjutsu:

· Genjutsu: Kaleidoscope Prison: Pulls the enemy into a mental labyrinth composed of countless mirrors. Each mirror reflects the deepest fears, regrets, or desires within the enemy's heart, refracting, distorting, and looping them until their spirit completely collapses, lost in the fragments of their own consciousness. This technique can be cast on multiple people simultaneously over a vast range.

· Genjutsu: Law of Causality Seal: Rather than directly creating hallucinations, it plants a powerful "psychological suggestion" or "false law of causality" in the enemy's subconscious. For example, the victim will firmly believe that "using Lightning Release will hit their own allies" or "they cannot move upon seeing a kunai." Such suggestions are extremely difficult to detect or break, fundamentally distorting the enemy's combat logic and decision-making.

· Genjutsu: Memory of Fallen Gods: One of the ultimate genjutsu targeting powerful individuals. It forcibly connects the victim's spirit to the residual memories or painful moments of a deceased powerhouse, allowing them to briefly "experience" that level of despair, agony, or loss of control, causing massive mental shock and a momentary blankness of consciousness. It may even trigger a backlash of the victim's own power.

These genjutsu no longer merely interfere with the senses; they strike directly at mental weaknesses, distorting cognition and even implanting false rules, making them impossible to guard against and devastating in power.

Redevelopment of Forbidden Arts: "Pure Land Reincarnation"

Sakuya invested even more energy into the forbidden art developed by the Second Hokage, the Impure World Reincarnation. He loathed that crude, disrespectful, and flawed method of summoning (cracks, paper scraps, inability to exert full power).

Relying on the Eighty Gods Mirror's deep analysis of souls, contracts, and Yin-Yang Release formations, combined with data provided by Orochimaru and the original version of the Book of Sealing, he performed a subversive improvement.

Ultimately, he completed a brand-new S-rank forbidden art—

"Pure Land Reincarnation"

Compared to the Impure World Reincarnation, this technique represents a qualitative leap:

1. Perfect Body: The reincarnated are no longer bodies covered in cracks made of dust and paper. Instead, they are perfect physical forms simulated by highly condensed Yin Release chakra and natural energy, infinitely close to their peak during their lifetime. They appear no different from the living, with smooth skin and lively eyes (though controlled by the caster), devoid of those eerie, discolored pupils.

2. Shackles of the Soul: The core control mechanism no longer relies on kunai embedded with charms. Sakuya developed a more obscure, powerful soul contract seal that acts directly upon the source of the reincarnated person's soul. The caster can exert absolute control from a distance through the ocular power of the Eighty Gods Mirror, making it nearly impossible to break free. The reincarnated retain their complete personality, memories, and combat wisdom, yet cannot defy any command from the caster.

3. Innovation of Sacrifices: No longer requiring living humans as sacrifices! Only a corpse of sufficient durability capable of withstanding the infusion of soul power is needed as a "vessel" for the soul to descend. This drastically lowers the threshold and moral burden (in Sakuya's view) of the technique, making large-scale reincarnation possible. The quality of the vessel corpse affects the upper limit of the power the reincarnated can exert, but does not affect their "completeness."

4. Power Output: Due to the optimization of the soul shackles and the perfection of the body, the reincarnated can exert 100% of their power from their lifetime, and in some aspects, fight more persistently by eliminating physical fatigue and pain. Furthermore, Sakuya can indirectly influence them through the Eighty Gods Mirror, allowing the reincarnated to use techniques he has copied that they may not have mastered in life.

Of course, this technique still has its limitations:

· Requires obtaining a certain amount of the deceased's DNA (same as Impure World Reincarnation).

· Extremely high requirements for the caster's chakra reserves and soul power, especially when controlling multiple powerhouses simultaneously, placing a massive burden on the caster.

· The durability of the vessel corpse limits the upper bound of the reincarnated's strength. To reincarnate someone like Uchiha Madara, one would likely need an exceptionally powerful corpse as a vessel.

· It remains, in essence, a desecration of the peace of the dead, continuously consuming the caster's mental energy to maintain the contract.

When Sakuya first succeeded in the secret chamber, using a prepared Jonin corpse as a vessel to perfectly reincarnate a powerhouse from the early days of Konoha—Kagami Uchiha—and saw the clarity in his eyes, the completeness of his body, and the surging power, feeling him completely obey his commands, he knew he held a key capable of overturning the boundaries between life and death.

This key would provide immeasurable assistance to his future plans. Whether it be acquiring the combat experience of deceased powerhouses, directly summoning an army of the dead, or... seeking revenge against certain specific individuals.

In the dim secret chamber, Sakuya looked at the reincarnated individual standing respectfully before him, indistinguishable from the living, the light of the Eighty Gods Mirror flickering coldly in his eyes. He suddenly had an idea that he had to put into practice immediately...

Inside the secret chamber, the radiance of the Yin Release chakra slowly dissipated, yet it did not vanish as usual; instead, it lingered around the newly born body like a gentle stream.

Rin Nohara stood there, no longer the cracked shell of the Impure World Reincarnation, but with glowing skin and lively eyes, identical to when she was alive, appearing even more radiant due to the pure energy. She moved her fingers slightly, and the initial confusion in her eyes receded like a tide, replaced by a profound clarity as if she had been asleep for a long time.

She... could feel it. Her heart beating slowly and powerfully in her chest, warm blood flowing through her veins, her lungs inhaling the cool air—these long-forgotten sensations returned so realistically.

Uchiha Sakuya watched this scene, and even he could not suppress a flash of excitement and pride in his eyes. "Pure Land Reincarnation" surpassed everyone's imagination; it did not merely summon a soul, it was more like... stealing a wisp of origin from the Pure Land to reshape a true vessel of life for it!

He called for Obito.

When Obito stepped into the secret chamber and saw Rin, who not only "existed" but had a familiar luster flickering in her eyes, he felt as if he had been struck by an invisible giant hammer, stumbling back a step, his body trembling violently. His breathing beneath the white mask became heavy and chaotic.

"Rin...?" His voice was shattered, filled with endless hope and fear, terrified that this was yet another vivid, illusory dream.

Rin Nohara turned her head at the sound, her gaze falling upon Obito's peculiar mask and attire, her brows furrowing slightly as if struggling to recognize him. But soon, a familiarity stemming from the depths of her soul pierced through the fog of time, her eyes slowly widening as she whispered in disbelief:

"...Obito?"

Just two words, yet they seemed to contain a thousand messages, instantly shattering all of Obito's psychological defenses.

However, the next second, Rin's gaze fell upon Sakuya standing to the side. She felt the invisible yet unbreakable soul contract shackles within her body, as well as the cold and powerful control Sakuya exerted. Her expression instantly became complex, joy replaced by confusion and a trace of imperceptible pain.

Obito captured this keenly. He whipped his head toward Sakuya, his voice hoarse with agitation, yet carrying an unquestionable resolve: "Sakuya! Release it! Now! Release all your control over her!"

Sakuya was slightly taken aback. He looked at the near-maniacal pleading in Obito's eyes, then at Rin, who had recovered her full consciousness yet appeared incredibly conflicted due to being under another's control. He understood what Obito meant in an instant.

"Pure Land Reincarnation" had succeeded, even beyond his wildest imagination—it had truly recalled a complete soul and bestowed a real life. But this life was still bound by the shackles of the technique.

This was no longer a puppet technique toying with the dead; this was... interference with life.

Under the searing gaze of Obito, Sakuya remained silent for a moment. The Eighty Gods Mirror in his eyes swirled once more, beginning to reverse-engineer the composition of the soul contract. This time, he was not looking for the key to "release and return to the Pure Land," but the keyhole to "break the shackles and grant freedom."

He raised his hand, the speed of his hand seals slow and solemn, as if performing a sacred ritual. A soft yet powerful light once again enveloped Rin.

"Pure Land Reincarnation: Release: Soul Returns to Freedom."

The light did not decompose Rin; instead, it merged into her limbs and bones like warm sunlight. The invisible contract shackles within her body melted and snapped like ice in this radiance.

Rin's body trembled slightly, and she closed her eyes, feeling the last trace of being manipulated and bound vanish completely. When she opened her eyes again, only pure, unbelievable freedom and clarity remained. She looked down at her hands, feeling the life force that truly belonged to her, without any obstruction.

She... had really returned. A complete soul, a real body, absolute freedom.

Obito slowly removed his mask, revealing a face weathered by time, now streaming with tears. He walked toward Rin step by step, each step seeming to span countless long years and despair.

Rin looked at that face, both familiar and strange, and at the tears in his eyes; all questions seemed to have their answers. She did not speak, her own eyes brimming with tears, and she slowly reached out her hand.

Their hands, after experiencing life and death, despair, mistakes, and redemption, crossed the long expanse of time and finally touched once more.

Real and warm.

Sakuya stood quietly to the side, watching this scene that transcended life and death. The initial excitement in his heart had subsided, replaced by a deeper shock and realization. Yet beneath it all, there was a profound sense of fear.

Yes. The power of "Pure Land Reincarnation" was far more profound and dangerous than he had imagined. It touched upon the realm of gods. Even the realm forbidden by gods. He decided that unless absolutely necessary in the future, he would never use this technique again. He would absolutely not risk his own safety to commit an act that trampled upon the divine.