Naruto: The Strongest Sage.

"What do you want?" Uchiha Itachi was not qualified to negotiate conditions. But since the other party suddenly threw out such a bargaining chip, Aoba was still willing to give him some face.

"Sasuke has endured too much that he shouldn't have to endure. These... are my fault. Kamikawa Aoba, help me take good care of him."

..................

After being in a coma for a day and a night, Sasuke finally woke up completely. After he woke up, the power of the curse seal on his body also shrank back.

"how do you feel?"

"It's a very special chakra. It may take some time to fully master it."

"It's much better than I thought. You can't rush this kind of thing."

"I understand. But regarding Orochimaru's soul fragments, I can't sense them now."

"This is even more urgent. I said, the Heaven's Curse Seal is the culmination of all Orochimaru's research. If it is so easy to break, then it is underestimating Orochimaru.

I already have a plan for this problem. But it will take time to implement. Now, the first thing we need to do is to complete the analysis of the Sharingan's pupil power.

Before you joined, I had already separated the pupil power into mental power, Yin escape chakra, and spiritual power.

Then I tried to replicate the original Sharingan power according to the separated proportions. But I failed. All the procedures were correct, but I just couldn't succeed.

I have an idea about this. Perhaps the synthesis of pupil power is still lacking a key condition."

"The bloodline of the Uchiha clan?" This time Sasuke was smart enough to guess what Aoba was thinking.

"That's right. The Sharingan is a bloodline limit. So, in the final analysis, it should all be related to blood. It cannot be directly synthesized by external forces alone. But with your participation, this problem should no longer be a problem."

Although the idea is good, it is still extremely difficult to implement in practice. The most critical problem is that Sasuke cannot actively mobilize his mental power to merge with the converted Yintun Chakra.

Many ninjutsu in the ninja world involve the use of mental power. But most of them are used indirectly. Even the secret techniques of the Yamanaka clan are essentially the use of Yintun Chakra to indirectly control mental power.

Qingye's ability to manipulate it was a benefit for him as a time traveler. For the original residents of the ninja world, directly manipulating the original mental power was more difficult than S-level ninjutsu.

"It's a problem, but it's not unsolvable. Look me in the eyes and don't resist."

Aoba revealed his Sharingan, used a genjutsu on Sasuke, and then entered his spiritual world again.

"Don't resist. I will now manipulate your body and try to replicate the previous operation."

Using Aoba's will and manipulation, combined with Uchiha Sasuke's body, Aoba bypassed all obstacles and began to truly try to synthesize the original pupil power of the Sharingan.

However, when he tried this operation, he found a very interesting problem. That is, Sasuke's pupil power is very strong. But most of the pupil power is not in the Sharingan, but sealed in the brain.

If such a huge amount of pupil power were to flow into his eyes, combined with his multiple violent mental fluctuations, he should be able to open the kaleidoscope directly.

But no, these huge pupil powers were locked in his brain. He couldn't actively mobilize them.

Qingye guessed that this should be the self-protection mechanism of Uchiha that he had deduced before. His body knew that it could not withstand the awakening of the Mangekyo, so it blocked the influx of this part of the pupil power.

All Uchiha should have this kind of protection mechanism, but Sasuke's is more perfect.

Because he is the protagonist and the reincarnation of Indra. The concentration of blood in his body should be far higher than that of other Uchiha. It is estimated that he is at the same level as Uchiha Madara.

Even this protection mechanism may have been tampered by the Six Paths Sage. After all, if Sasuke awakened too early like Uchiha Itachi, he would end up getting the blood disease and becoming a sickly person.

He died of illness before the final battle. Then the plan of the Six Paths Sage would become a joke.

Aoba was cautious and did not touch the pupil power sealed in Sasuke's brain. Instead, he used his body step by step and began to try to artificially synthesize the original pupil power.

This process is not complicated, but it is extremely difficult, because the synthesis of pupil power is carried out in the eyes, and the eyes are extremely delicate organs, especially the Sharingan.

Qingye tried carefully bit by bit. It took him half a day to finally complete the first test.

It worked!

First of all, one thing should be confirmed. That is, he successfully used Sasuke's body to synthesize the original pupil power in his Sharingan, which improved Sasuke's Sharingan pupil power.

But during the synthesis process, Qingye also confirmed one thing. That is, his inference was correct. The original pupil power can be synthesized on its own initiative. But it can only be in the body of Uchiha. And this original pupil power cannot be transmitted.

It seems that it is because of the incomplete pupil power. This pupil power is synthesized in Uchiha's body and directly integrated into his Sharingan. It cannot be separated for other operations.

In other words, this move can only be used by Uchiha. He himself cannot use it.

This discovery made Qingye feel a little upset. But fortunately, he had prepared himself mentally in advance. So, he could still accept it reluctantly.

Now the situation is very interesting. Aoba can complete the synthesis process. But he can't do it on himself. And Sasuke can do it on himself, but he can't do it.

It’s really ironic!!

However, this process was still very helpful to Sasuke. He could be said to have experienced immersively how to synthesize the original pupil power.

In this way, the benefits of completing this operation independently are huge. It won't take long for him to truly learn this operation.

Sasuke gained a lot, but Aoba was a little unhappy.

After all the efforts, all the results were in Sasuke's favor. Although he was his disciple, he was still very unhappy.

The most important thing is that if he can't actively synthesize pupil power, then the ten three-magatama Sharingan in his hand will not be that valuable.

The reason why Qingye conducted this research was because he wanted to try to synthesize his own pupil power and then inject it into the Sharingan in his hand to increase the pupil power of his Sharingan to the limit.

Then inject your own spiritual power to trigger changes in pupil power, thereby artificially creating a kaleidoscope. Now, this idea has basically been declared shattered.

Don't forget, these Sharingans were tortured too badly by Danzo, and their nervous systems were permanently damaged. They can no longer be transplanted into the eyes.

This means that if Sasuke wants to get these eyes in the future, artificial synthesis is impossible.

In desperation, Qingye could only activate the backup plan.