Mangekyo Fusion

With a bang, the Third Hokage's figure vanished without a trace. Clearly, just like Uchiha Shūichi, the one who had appeared here had merely been one of the Third Hokage's Shadow Clones.

Uchiha Shūichi likewise turned into smoke and dispersed without a trace.

At the same time, Uchiha Shūichi's true body trembled slightly. Recalling the intelligence his Shadow Clone had obtained, he narrowed his eyes.

Is that old bastard, the Third Hokage, trying to test me?

Uchiha Shisui had only Itachi and me as friends. No matter how trustworthy I appeared, he would probably still harbor suspicions.

It seems I can't make a move against Uchiha Fugaku anytime soon. Once the information about Kotoamatsukami is exposed, I'll truly become everyone's target.

But even if I don't act, Uchiha Itachi won't be easy to deal with. Without Shisui's request this time, given Uchiha Itachi's extreme personality, he might not let Shimura Danzō off.

That still isn't enough. I'd better find a way to get rid of the Third Hokage and Shimura Danzō as soon as possible. Without those two old bastards who know about Kotoamatsukami, I can completely control all of Konoha.

The Kotoamatsukami Sharingan in Uchiha Shūichi's hand was inferior to its original owner, Uchiha Shisui, in terms of brainwashing ability when used personally. However, it was more than enough to control ordinary Kage-level Ninja, or even regular Mangekyo Uchiha.

With the restorative abilities of Hashirama Cells as well, its cooldown could basically be completed in three days.

Given enough time, as long as they did not know the information about Kotoamatsukami, he could gradually infiltrate any ninja village completely.

The Byakugan of the Hyuga Clan could only see through the existence of Kotoamatsukami's genjutsu; it had no way to resist Kotoamatsukami itself.

It won't be easy to deal with Hiruzen Sarutobi from within Konoha, but if I act from the outside... Right, there's also Uchiha Fugaku.

Uchiha Fujioka might possess a Mangekyo as well. If Uchiha Itachi goes after Shimura Danzō this time and something happens to him, then as his father, Uchiha Fujioka will definitely act too!

Time passed, and half a month went by in the blink of an eye.

Within Orochimaru's Base, Uchiha Shūichi looked at the emerald-green injection in his hand, excitement evident in his expression.

Is this the drug you developed? Can it help me completely fuse with the power of the Kotoamatsukami Mangekyo?

"Yes, Lord Shūichi. This drug combines the spinal fluid of living Uchiha Shisui with a large amount of White Zetsu Cells. It can completely alter your physique, giving you some of Uchiha Shisui's genes and allowing you to fully control the Mangekyo."

"After all, judging from the fusion method of the Eternal Mangekyo, Uchiha with close bloodlines can fully assimilate the power of the Sharingan after transplanting one."

Orochimaru spoke at length, and Uchiha Shūichi could not help but nod.

The Eternal Mangekyo could also be considered a form of eye transplant, yet it had no flaws or rejection whatsoever. It seemed Orochimaru's words truly made sense.

"What a pity... Lord Shūichi has not captured Yamato yet. Otherwise, Hashirama Cells could have been incorporated into the drug made this time as well."

White Zetsu Cells were merely a weakened version of Hashirama Cells. Compared to genuine Hashirama Cells, there was still a vast gap.

Orochimaru truly wanted to see what level Uchiha Shūichi could reach after fully integrating Hashirama Cells, and whether he might directly awaken the Eternal Mangekyo.

"Don't worry... I'll capture Yamato very soon."

Uchiha Shūichi spoke calmly, then picked up the syringe and directly plunged it into his spine. The pale-green medicine was quickly injected into his spinal marrow.

The next second, a sensation like blazing fire instantly spread through Uchiha Shūichi's entire spine. It seemed to travel from his marrow into his skeleton, as though his bones were being scorched by flames.

Amid the intense pain, Uchiha Shūichi's eyes opened wide as he gritted his teeth. The Kotoamatsukami Mangekyo and Three Tomoe Sharingan had both appeared, spinning continuously.

He could feel the vitality and Yang Chakra within his body continually increasing. Even his own Three Tomoe Sharingan grew stronger under the nourishment of Yang Release vitality.

Only Uchiha Shisui's Kotoamatsukami Mangekyo showed little change. Even after being nourished by Yang Chakra, it merely became slightly more lively, and its restorative ability improved a little.

Soon, under the effects of the drug, the burning sensation gradually faded. Instead, waves of icy cold began seeping out from his marrow.

Uchiha Shūichi shuddered and clenched his teeth. Fortunately, the chill came quickly and left just as quickly, soon disappearing without a trace.

Yet from Uchiha Shisui's Kotoamatsukami Mangekyo, an incomparably cold Dojutsu Power began to flow out, merging with his own Yin Chakra.

Uchiha Shūichi could feel his Yin Chakra becoming purer, his neural reactions becoming faster, and most importantly, Uchiha Shisui's Kotoamatsukami Mangekyo had now completely fused with him. Controlling it posed no difficulty whatsoever.

"How is it, Lord Shūichi!?"

Orochimaru looked at Uchiha Shūichi eagerly, wanting to know the results of his experiment. The Mangekyo in Uchiha Shūichi's eyes spun once as he sensed it, then a smile appeared on his face.

"Very strong... Both the quality and quantity of my Yin Chakra have increased. My neural reactions and Mental Power have also undergone a transformation. This feeling is almost comparable to when I awakened the Mangekyo myself!"

Whenever the Uchiha Clan awakened their bloodline, it was not only their Sharingan that changed; their own Chakra also increased. This was especially true for the Three Tomoe and Mangekyo, which were equivalent to qualitative transformations.

After a Three Tomoe Uchiha awakened the Mangekyo, even without counting any Mangekyo Dojutsu, their physique and Chakra would advance by leaps and bounds, reaching at least the lower threshold of a Kage-level Ninja.

Combined with the bizarre variety of Mangekyo Dojutsu and the powerful Susanoo, it could be said that any Uchiha who awakened the Mangekyo was already considered one of the stronger Kage-level Ninja.

Although the Kotoamatsukami Mangekyo Uchiha Shūichi had obtained was powerful, a genjutsu like Kotoamatsukami was only formidable in one-on-one situations and was also limited by its cooldown time.

Most importantly, he had no way to awaken Susanoo, so in the beginning, his strength had still not reached the Kage-level.

But now, after being strengthened by the drug and resonating with that Kotoamatsukami Mangekyo, Uchiha Shūichi had effectively half-awakened a Mangekyo himself—after all, resonance induced by only one Mangekyo eye could not compare to the bloodline ascension brought about by both eyes awakening at once.