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Kirito sat cross-legged in his hidden lab, dozens of shadow clones surrounding him like quiet sentinels. The lab was filled with jars of Hashirama cells, Uchiha DNA, and experimental samples, all collected during his previous missions.
So much knowledge, so many possibilities, he thought, opening a scroll that had belonged to Orochimaru himself. His eyes scanned the detailed notes on forbidden jutsu, experimental procedures, and kekkei genkai interactions.
He assigned a clone to carefully re-enact the experiments on chakra reaction to Hashirama cells while he observed, taking mental notes on improving efficiency and stabilizing outcomes.
"Clone, adjust the infusion rate slightly," he whispered. The clone moved instantly, changing the flow of chakra into the sample. Beads of energy pulsed in the vial, stabilized, and then glowed with faint vitality.
Yes… like this. Stability is key.
Hours passed as Kirito experimented, combining fuinjutsu barriers with cell manipulation, ensuring each process remained controlled. Every small improvement he made brought him closer to his ultimate goal: replicating or surpassing Living Corpse Reincarnation without the weaknesses Orochimaru faced.
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Chapter 2 – Shadow Labyrinth of Learning
Days bled into weeks. Kirito's clones moved like extensions of his will, each assigned to study a different aspect of the collected data:
One focused on Sharingan mechanics, recording chakra pathways, and ocular regeneration.
Another experimented with Hashirama cells, testing how chakra infusion affected physical durability and energy output.
Others meticulously cataloged forbidden jutsu and performed controlled simulations.
Kirito wandered among them, silently observing, his own chakra core pulsing in rhythm with the experiments.
Everything must be perfect. One error, and the entire chain reaction could destabilize.
He paused at a clone replicating the Curse Seal techniques. "Adjust the seal's containment capacity. It should expand with chakra absorption but never exceed stability threshold."
The clone nodded and implemented the change, the seal glowing a steady red.
Fuinjutsu is the backbone of control. No matter how powerful, power without control is useless.
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Chapter 3 – Perfecting the Seals
Months passed. Kirito immersed himself in sealing jutsu mastery, integrating his knowledge from Orochimaru's notes with techniques he had developed over years of experimentation.
The goal is not just power… but security. Stability. Permanence.
He drew intricate seals in the air with his fingers, using shadow clones to test their durability against extreme chakra surges, elemental jutsus, and genetic experiments gone wrong.
"Clone, overload the seal with five times normal chakra," he commanded.
The clone hesitated for a fraction of a second before complying. The seal pulsed violently, glowing bright white, but did not fracture.
Good… now, make it compatible with cell storage and DNA containment.
Hours turned into days as Kirito created complex multi-layered sealing techniques that could store, protect, and manipulate DNA, kekkei genkai, and dangerous chakra-based experiments simultaneously.
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Chapter 4 – Fusion Experiment
He had perfected the basic systems of DNA integration, cell stabilization, and fuinjutsu containment. He began experimental fusion—combining Uchiha cells with Hashirama cells in controlled simulations, testing potential physical and chakra enhancements.
The risks are immense, he thought, eyes narrowing. But the payoff… could be revolutionary.
Clones moved in synchronized precision, maintaining seals, observing reactions, and recording every detail. Kirito experimented on small tissue samples first, then moved to chakra-infused constructs to test energy transfer efficiency.
If I can control the fusion, I can replicate almost any kekkei genkai safely.
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Chapter 5 – Observing the World
Even as his lab work consumed him, Kirito never lost touch with the outside world. From rooftops near the academy, he watched students come and go, noting progress, weaknesses, and potential threats.
When Mizuki began plotting to steal the Fake Scroll of Seals, Kirito's mind immediately started strategizing. Not to intervene—yet—but to prepare contingencies.
Observation first. Intervention only if necessary. Precision is everything.
He sent clones to quietly monitor Naruto, while simultaneously reinforcing his fuinjutsu arrays around the real scrolls. Every chakra thread, sensor, and hidden array in the Hokage building could be neutralized, rerouted, or concealed.
This is not heroism. This is control.
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Chapter 6 – Integration and Expansion
By eighteen, Kirito had fully integrated Orochimaru's research, his own improvements, and fuinjutsu mastery. Shadow clones were learning Living Corpse Reincarnation, DNA integration, and advanced sealing techniques simultaneously.
One day, all of this will come together. Every jutsu, every seal, every experiment… everything.
His lab hummed with energy. Each clone moved like a part of him. The experiments, DNA samples, and sealed jutsus formed a network of controlled knowledge, preparing him for any challenge.
He paused, placing a hand on his chakra core. The canon is moving forward, but I am already several steps ahead.
As Naruto, Sasuke, and other students approached new challenges, Kirito remained in the shadows, a silent observer, a strategic genius, and a master of control, ready to manipulate outcomes without revealing his full strength
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