Awakening the Mangekyō Sharingan

Night fell, and Minagawa Uchiha, having adjusted himself to his best condition, slowly opened his eyes.

"Whew. I've prepared for this day for half a year. Now it's time to see whether my theory works. Will this forge the foundation for me to stand at the pinnacle of the world, or will I suffer a mental breakdown and become another corpse from the Night of the Uchiha Clan Downfall? Let's begin..."

He rose and checked whether his arrangements were complete. Minagawa Uchiha planned to use immense negative emotions to assault his own mind, and there would undoubtedly be a considerable disturbance during the process. At a time like this, he did not want anyone to be alerted and interrupt his Awakening Eyes process.

Once he confirmed there were no oversights in his preparations, Minagawa Uchiha wasted no time. Having made up his mind, he directly opened the seal on the scroll and absorbed a large amount of Chakra filled with negative emotions into his body.

Boom!

The instant he finished absorbing it, Minagawa Uchiha felt as if a boundless ocean had surged toward him within his consciousness. Countless wave-like negative emotions nearly drowned his rationality outright.

Moreover, these negative emotions had originally belonged to him. As they surged forth, his consciousness responded as though he had returned to the scenes that had produced those emotions, actively generating even more negative feelings and reliving them firsthand.

These emotions had originally arisen from Minagawa Uchiha's desire to survive. Thus, the negative emotions extracted on the basis of survival also strengthened his will to live. Even as the negative emotions raged within him, Minagawa Uchiha gradually endured them, preserving the final sliver of his survival instinct and never completely losing himself.

He did not know how much time had passed. Minagawa Uchiha's body now radiated a terrifying, cold, evil Chakra aura. His once-calm face had turned ferocious, and the Three Tomoe Sharingan in his eyes spun wildly. Gradually, the three rapidly spinning tomoe connected end to end, then swiftly spread apart, forming an entirely new pattern.

The moment the pattern fully took shape, Minagawa Uchiha regained his clarity. He did not need to examine it closely to understand: being able to regain consciousness after such a powerful negative assault could only mean that his Mangekyō Sharingan had successfully awakened.

While silently rejoicing, he sorted through his previously chaotic mental state. After taking some time to recover, he began to experience the wonders of his Mangekyō Sharingan.

"So this is what it feels like... Is this the power of the Mangekyō Sharingan? I can feel my consciousness ascending. So powerful. Even these lingering negative emotions have to submit before these eyes. That must be why I was able to regain my senses. Perhaps this is also why the Sharingan can restrain the Tailed Beasts."

"Hehe, the gap between the Three Tomoe Sharingan and the Mangekyō is truly enormous. They're practically powers from entirely different dimensions. No wonder both Obito Uchiha and Uchiha Itachi looked down on the rest of the Uchiha Clan after awakening their Mangekyō Sharingan. This power truly deserves pride!"

"Hahaha, finally! I've finally awakened the Mangekyō Sharingan! Once I familiarize myself with the improvements it brings, surviving this Night of the Uchiha Clan Downfall should be more than easy."

"Hehe, awakening the Mangekyō Sharingan at eleven... Even compared to that filial son Uchiha Itachi, this achievement is no less impressive. Thinking back on the past half-year since my memories awakened, it really feels like a dream!"

"Now then, let's see whether my guess can come true. Mangekyō Sharingan techniques... Perhaps I won't need to run at all. If this succeeds, I'll take on Obito Uchiha and Uchiha Itachi head-on!"

For Minagawa Uchiha, having read the Original Work, he possessed far too many advantages over the natives of the Ninja World. This information alone was enough to serve as a cheat.

Leaving aside the deeds and personalities of various characters, he could readily recall all manner of classified intelligence, even top-secret information known only to those directly involved. With such intelligence, Minagawa Uchiha, as a Transmigrator, could avoid many traps and directly reach the pinnacle of strength in the Ninja World without taking needless detours.

The Sealing Scroll from before, for example, had been an idea Minagawa Uchiha developed by drawing on the Second Hokage's Zero-Tails Technique and Tsunade's Yin Seal. Do not underestimate such an idea. Everyone in the Uchiha Clan wanted to awaken their eyes, and once they did, they all wanted to advance to the Mangekyō.

During the Warring States Period, there had even been Clan Members who attacked their own relatives and friends in pursuit of advancing to the Mangekyō.

If the Uchiha Clan had known of this method back then, most of them could have awakened the Mangekyō Sharingan, and that bloody chapter of history would never have occurred.

Compared with the information on awakening the Mangekyō Sharingan, Minagawa Uchiha valued another piece of information even more—one that could create an ability as overpowered as a cheat.

That was the fact that the Mangekyō Sharingan was also known as the Mirror of the Heart. At the instant it awakened, it responded to the awakener's truest desire and formed a corresponding ocular technique.

For instance, when Obito Uchiha saw Kakashi pierce Nohara Rin's heart, his Mangekyō Sharingan awakened. Because he refused to believe it was real and hated himself for failing to arrive in time to save Nohara Rin, he awakened Kamui in his right eye, which allowed him to escape the world, and Kamui in his left eye, which could open space remotely.

Uchiha Shisui wanted to change the thinking of the village and the Clan Members so that everyone could live in peace, and thus awakened Kotoamatsukami, which could alter the thoughts of others. There were many more examples besides.

To make full use of this aspect of the Mirror of the Heart, Minagawa Uchiha had added powerful psychological suggestions toward his desired ocular technique into every portion of negative emotion he collected for awakening the Mangekyō Sharingan.

He wanted to avoid ending up like Uchiha Shisui. Shisui had clearly wanted the power to alter other people's thoughts, yet he gained Kotoamatsukami, which could only be cast on one person at a time and required a ten-year cooldown after use. That was utterly unfair. Changing the minds of one or two people obviously could not change the overall situation. This also showed that the Mangekyō Sharingan had limits when responding to desires.

Therefore, Minagawa Uchiha could only seek a desire that the Mangekyō Sharingan was capable of fulfilling. The safest method was to choose from among the many known ocular techniques.

In Minagawa Uchiha's eyes, Kotoamatsukami and Kamui were the most desirable. However, Kotoamatsukami's cooldown was too long. Even with the aid of Hashirama Cells, it would likely still require repeated intervals before it could be activated again.

Kamui's power was obvious to all, so it could serve as a backup option. Then there were the ocular techniques granted by the Rinnegan, but the Rinnegan was ultimately a level above the Sharingan. Without great confidence, Minagawa Uchiha did not want a crippled version of such an ability.

After considering his options again and again, Minagawa Uchiha suddenly thought of a rather special ocular technique—one that required the Sharingan to perform and was known as the Sharingan's Ultimate Dojutsu!