Then, he walked into a hidden secret chamber, tightly closed the door behind him, sat cross-legged on the floor, and entered a deep meditative state. For three full days and nights, he forgot all outside distractions, focusing entirely on cleansing every shadow and negative emotion within his mind. When he finally opened his eyes again, determination and clarity filled his gaze.
Next came the moment to truly display his power! Shiyu Uchiha uttered a soft shout as chakra energy surged through his body, instantly activating [Mystic · Fire Release · Chakra Mode] and adjusting it immediately to its peak condition.
At this moment, he seemed entirely enveloped in a layer of scorching flame. Combined with his firm belief, an awe-inspiring powerful aura radiated from his entire being. However, this was merely the beginning.
Immediately afterward, driven by his unwavering willpower, his two Mangekyo Sharingan slowly activated.
In those blood-red eyes, mysterious and complex patterns glimmered with eerie light. As the eyes fully activated, Shiyu exerted himself completely, perfectly synchronizing two dojutsu techniques together. A destructive force started to swell within his chakra.
With both dojutsu techniques closely interlocked, a formidable and enigmatic destructive power surged through Shiyu's body, growing increasingly intense.
Simultaneously though, due to the dojutsu, he could clearly sense his control over each part of his body steadily increasing—as if every muscle and nerve fiber could be effortlessly activated and controlled at will.
Precisely because of this, Shiyu could maintain control over that chakra laced with destructive energy, avoiding self-destruction.
This increase in strength, however, did not come without cost. When the dual dojutsu mutually enhanced each other and finally reached their limit, his eyes began continuously oozing blood. Fresh red streaks flowed downward from the corners of his eyes—horrifyingly vivid.
Meanwhile, his entire body also endured immense strain caused by the overexertion of his Mangekyo Sharingan. Wave after wave of agonizing pain washed over him, eroding his will constantly.
Yet surprisingly, despite the physical torment and pain wearing down his spirit, at this very moment, Shiyu felt an unprecedented state of well-being.
That marvelous sensation of transformation into a fire deity, controlling boundless flames—an experience from before—descended upon him once again, yet now even more powerfully. At this rate, he felt there was still more strength to gain. But ever resolute, Shiyu quickly shook off the feeling within a single instant. He realized it was merely a fleeting illusion caused by the sudden and excessive surge in power.
Compared to the last time he used this ability, this enhancement was significantly greater. One important reason for this was that Shiyu's foundational strength had already improved since then. After long periods of rigorous training and hard-earned battlefield experience, especially aided by the combined application of Yang Release and Fire Release techniques, both his physical abilities and chakra reserves had advanced noticeably.
Additionally, he had conducted extensive research and made certain optimizations and improvements to [Mystic · Fire Release · Chakra Mode].
Through constant adjustments and refinements to this skill, he further improved its compatibility with himself, allowing it to unleash greater power while reducing the strain on his body.
Lastly, and most crucially, there was the prior experience from Shiyu Uchiha. He had become increasingly precise and reasonable in controlling the timing and coordination of techniques linked with his Mangekyou Dojutsu. He deeply understood how to maximally stimulate the synergistic effect between the two Dojutsu techniques, allowing them to unleash their most powerful force. All these factors together were what made this improvement go far beyond anything before.
However, even though this sensation of transforming into a fire deity was merely an illusion, one fact could not be ignored: he had indeed elevated his strength to an unimaginably high level, and his control over his body had simultaneously advanced by leaps and bounds.
This incredible level of control gave Shiyu Uchiha more room to maneuver in his upcoming plans, so he started moving forward with the next phase.
His current might was entirely due to the amplification effects of the Mangekyou Dojutsu, yet Shiyu Uchiha's ultimate goal was to find a way to solidify this temporarily acquired superlative state, making it his everyday standard.
He clearly understood that the key principle behind achieving this objective lay in skillfully employing the two distinctly different forces—Yin Release and Yang Release. Yin Release could create intangible, conceptual things—much like meticulously drawing a perfect architectural blueprint;
Yang Release, on the other hand, breathed life into form, akin to constructing a real physical entity based upon the blueprint. Only when both are integrated and work in harmony could the tremendous power of Yin-Yang Release truly manifest.
Because Shiyu Uchiha himself lacked sufficient comprehension of Yin and Yang Releases, he had to rely on his partial insights into Yin-Yang Release combined with his Mangekyou Dojutsu to complete this step—which rendered this process extremely dangerous. Nevertheless, he had long mentally prepared himself for what was ahead.
Thus, without hesitation, Shiyu Uchiha immediately activated the surging chakra within his body, initiating the morphological transformation characteristic of Yang Release.
Fortunately, due to his present mastery-level control over himself, coupled with extensive research and proficient command of Yang Release morphological transformation techniques developed over time, the entire process progressed remarkably smoothly.
Time flew by like a fleeting white colt—a momentary flash (Jianghu idiom meaning time passes quickly). As the Yang Release attributes continuously intensified, even Shiyu Uchiha's extraordinary control gradually struggled to fully manage this ever-growing power.
The once-balanced coexistence of Yin and Yang Releases inside his body—kept in check by Shiyu Uchiha's iron grip—gradually slipped out of his control. They began opposing and resisting each other, rendering his condition increasingly unstable.
Recall how effortlessly he could once activate Yang Release: [Fire Release: Chakra Mode] merely by willing it. Now, however, it had become exceptionally difficult, as if carrying a thousandfold burden, with each step demanding enormous effort.
Moreover, worried that such a clash of forces might trigger even graver consequences, Shiyu Uchiha had no choice but to act cautiously, slowing his actions to an extreme degree.
Even with the utmost caution, his body still inevitably suffered injuries from the intense conflict between Yin Release and Yang Release.
Fortunately, Shiyu Uchiha possessed a solid foundation, and his willpower was unshakable. More importantly, deep down, he always held onto a cherished attachment — a powerful force that kept him moving forward.
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