The fusion of my three lives had left my mind a perfect machine of clarity, but my body still required refinement. I closed my eyes, focusing on the balance between mental acuity and physical capability. Every cell in my body pulsed with energy as I refined my spiritual power into raw physical potential.
Chakra surged through me like a raging river. My reserves, once comparable to that of a high Chūnin prodigy, expanded exponentially. Within moments, I could feel my body operating at elite Jōnin-level capacity, every fiber, every muscle, perfectly attuned to channel the immense chakra within me.
I opened the storage scroll and withdrew Fugaku Uchiha's Mangekyō Sharingan. The eyes shimmered, vibrant with Yang energy, centuries of experience, and latent power. My knowledge of Yang Release guided me instinctively. I reached out with my own chakra, drawing the Yang energy from his eyes, merging it seamlessly into my own.
The effect was instantaneous. My Mangekyō Sharingan flared, pulsating with multiple layers of power. I felt the two unique pupil techniques of Fugaku's eyes imprinting themselves into my vision and mind.
His left eye, Amaterasu, burned with eternal black flames, capable of consuming anything in its path.
His right eye allowed him to see the potential results of any action or decision, an intuitive predictive ability that made strategy effortless. I could feel it syncing with my own thought process, expanding my combat foresight far beyond any ordinary Uchiha.
I did not stop there. I began fusing the other Sharingan I had collected, the 3-tomoe eyes from my fallen clansmen, incorporating their chakra and experiences into my body and mind. Every stolen eye added combat experience, chakra flow knowledge, and the subtle insights of the Uchiha who once wielded them.
By the time I finished, I was no longer just a child, no longer simply Indra reborn in a fragile Uchiha body. My Mangekyō Sharingan pulsed with the combined power of multiple generations, my body moved with the efficiency of a seasoned warrior, and my mind calculated outcomes with godlike precision.
The Naka Shrine hummed around me, acknowledging the power I now commanded. Even centuries of Uchiha history, once dormant in forgotten scrolls and vials, now flowed through me as a single, unstoppable force.
I stood, testing my body. Chakra flared through every nerve, every limb, every sense. My vision predicted the flow of energy around me. My strength could shatter stone. My Mangekyō Sharingan burned with the intensity of ancient Uchiha power fused with Indra's essence.
Everything was ready. The world would soon learn the full weight of Indra Uchiha reborn, and nothing—not even Itachi—would escape the storm I had become.