Three-Tomoe Sharingan!

Under the laboratory's cold lights, Uchiha Kyohaku's skin looked unnaturally pale, as though it had not seen sunlight for a long time. He carefully removed the final tube of pale red liquid from the centrifuge. Under the light, it reflected a faint, strange sheen.

"The Uzumaki clan's cellular vitality truly is extraordinary," he murmured. His voice sounded especially clear in the silent underground laboratory. Deep within his black eyes behind the lenses, a trace of scarlet quietly flowed—the Sharingan was meticulously observing the minute cellular changes within the test tube.

After several weeks of tireless work, using White Zetsu cells' exceptional neutralizing and fusion properties, he had finally succeeded in perfectly integrating the Uzumaki bloodline factors obtained from Karin's mother with his own cellular genes. He had created an "Uchiha Kyohaku version Uzumaki gene serum" exclusively for himself.

Without hesitation, he rolled up his sleeve and slowly injected the serum into his vein. A warm current instantly spread throughout his body. Unlike the intense sense of transformation when he had first fused with White Zetsu cells, this time it felt more like a surging tide, with immense power continuously welling up from the deepest parts of his body.

He sat down cross-legged, closed his eyes, and focused, doing his utmost to guide and adapt to this new power.

His chakra was wildly skyrocketing at an astonishing rate! His chakra pathways seemed to have widened severalfold. His chakra reserves, already at the jonin level, now resembled a breached riverbank, surging and roaring as they effortlessly broke through their bottleneck and stabilized at the elite jonin level. Even then... they continued to accumulate, their depths unfathomable.

This amount... it's practically comparable to a small tailed beast. Kyohaku was shaken. In neither his past nor present life had he ever experienced such vast energy filling his body. At the same time, his sensory range was expanding drastically. Even with his eyes closed, he could clearly hear insects crawling in the courtyard outside the laboratory and pedestrians conversing quietly on the distant street, as if they were speaking beside his ears.

The most noticeable change came from his eyes.

The violent impact of energy and the completion of his bloodline instantly stimulated the Uchiha's Kekkei Genkai. He abruptly opened his eyes. Reflected in the mirror was no longer the pattern of two tomoe. Three pitch-black tomoe slowly rotated against a scarlet background, forming a powerful yet sinister pattern—the Three-Tomoe Sharingan!

Dynamic vision, insight, genjutsu ability... every power belonging to the Sharingan had undergone a qualitative leap. He could even feel that his observation of chakra had become extraordinarily minute, and he seemed able to catch faint traces of the natural energy permeating the air.

"My understanding of sealing techniques has deepened as well..." He extended a finger, blue chakra light dancing at its tip, and casually drew a simple sealing formula in the air. Its structure was stable and efficient, far surpassing anything from before. Unfortunately, he had not awakened the Uzumaki clan's signature ability, Adamantine Sealing Chains, as he had hoped.

"It seems that bloodline fusion and completion is not a simple addition of abilities. It leans more toward excavating potential and comprehensively improving one's foundational qualities." He analyzed the matter calmly, the rational mindset of a forensic doctor swiftly overriding his joy at gaining power. "Adamantine Sealing Chains may require more specific conditions or a higher bloodline concentration to awaken."

The process lasted nearly a month before he had completely fused with the power of the Uzumaki bloodline and stabilized it.

When he emerged from the underground laboratory once more and entered the courtyard, the sunlight falling on his pale skin actually felt somewhat dazzling. He lightly clenched his fist, feeling the chakra within him surge like vast rivers, as well as the incomparably clear world before his eyes.

Power... an unprecedented sense of power filled his entire body.

Yet he did not relax in the slightest. Fusing with the Uzumaki bloodline meant that he would have to wait at least another year before his next completion, giving his body enough time to fully adapt and stabilize. And time, it seemed, was not on his side.

He recalled the news his uncle had brought back not long ago—the Third Kazekage had disappeared.

"Sunagakure is probably already in complete chaos..." Kyohaku raised his head and looked beyond Konoha's walls. A trace of gravity flashed through his Three-Tomoe Sharingan. "The storm is coming."

The prelude to the Third Shinobi World War had already begun. He had to become stronger before the raging tempest descended.

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