Inside Kuroto's secret laboratory.

"Phew…" – When his soul returned to his main body, Kuroto finally breathed a long sigh of relief, he felt very relaxed and energetic as if his soul was very lively. ​​

Looking at the clone body lying on the test bench, Kuroto had a contemplative look on his face.

For the past few days that he has been Sharingan and Mangekyou Sharingan, he has deeply experienced the difference between Sharingan and Byakugan, at the same time, Kuroto has also developed a personal understanding of Mangekyou Sharingan.

And from his personal experience, the first conclusion that Kuroto has reached is that Kakashi is really worth respecting, to be able to bear continuous Chakra drain and an additional burden imposed by Sharingan for almost two decades is really not an easy feat.

Not to mention he isn't an Uzumaki or Senju, neither does he has Hashirama Cells transplanted into his body nor does he have any Bijuu to support him, and yet he managed to keep that Sharingan for almost two decades! That's something really worth respecting!

"Kakashi might really have the potential to reach Super Kage level in strength if not for the restraint that Sharingan put on him." – Kuroto muttered with emotion, but soon he calmed himself down and focused on the matter at hand.

Kuroto knows that it is impossible for him to convince Kakashi to give up that Sharingan and doing so forcefully would only have a negative impact, therefore, he decided to not think about this matter for now and focused on the clone lying on the test bench.

Taking out the experimental records log, Kuroto began recording the data of this clone which is way past the stage where it could be recovered or healed.

He then analyzed and compared the recorded data with the data he recorded at the time of taking out this clone from the nutrition tank and found that the most severely injured part of the clone was its nervous system.

And even in the nervous system, the damage was most severe to the cranial nerves, whether it was the optical nerves or the oculomotor nerves both of them were way beyond recovery even with the best Iryo Ninjutsu.

"Why are Cranial Nerves most damaged?" – Kuroto muttered to himself, "I guess it's because the ocular nerves of this clone couldn't bear the burden of Mangekyou Sharingan for too long and were damaged beyond recovery."

This does sound reasonable.

After recording some more of his analysis about Mangekyou Sharingan in the experimental log, Kuroto removed the Mangekyou Sharingan pair from the eye sockets of the clone body and then processed the clone to be destroyed.

At this point, the Mangekyou Sharingan Project has finally come to an end.

In the whole project, including the two clones that Kuroto destroyed to make the Uchiha Brother's witness the death of their brothers, the clone that Ryota destroyed at the time of escaping from his prison cell, and this final clone that Kuroto himself destroyed, he has destroyed a total of four clones.

Combining the total cost of all the raw materials that were used up to cultivate these four clones, then the cost of these four clones is worth more than 70 million Ryo.

And if he adds up the loss of equipment, cost of construction of the prison dungeon, as well as the various props and pieces of equipment that were required to carry out this whole Mangekyou Sharingan Project definitely exceeds 100 million Ryo.

And this is just the start, any high-end experiment project involving any field requires a lot of economic funding, something that only a Daimyo, a shinobi village, or some extremely rich such clans and families can afford.

Individual shinobi such as him or Orochimaru without a suitable background funding will always be constrained by their budget unless they have a source of solid funding.

But there is nothing he can do about this issue for now.

After destroying the clone, Kuroto thought of his short fight with Kumogakure's A-B Combo.

In the original Naruto story, Yondaime Raikage did not have many records, but the few records or battles that he had were very meaningful and clearly dictated his strength.

Especially the fight he had with Uchiha Sasuke at the Gokage Summit in the Land of Iron. The speed and strength he showcased at that time were extreme, Raikage was even able to dodge Amaterasu while in his Lightning Release Chakra Mode, that alone is an accomplishment worth mentioning.

After all, the appearance of Amaterasu is at the same instant that Sasuke would use the ability of his left Mangekyou, and being able to dodge something so dangerous in such a short instant is incredible indeed.

If Yondaime Raikage had shown some degree of restrain in that battle, did not recklessly attack the Amaterasu encased Susanoo with the intent of sacrificing his arm if necessary, then he might have truly killed Uchiha Sasuke in that battle.

After all, at that time, Sasuke not only had to maintain Susanoo Armor but had to also use Amaterasu and Kagutsuchi to cover the Susanoo armor with the black flames using the shape transformation.

Simultaneously using all the three Mangekyou Sharingan Dojutsu is obviously not easy even for the shinobi of Uchiha Clan, therefore Sasuke had to bear a great amount of burden at that time and he wouldn't have lasted much longer if Raikage had opted to have a battle of endurance while also simultaneously putting enough pressure on Sasuke to keep him on edge.

And then there is Killer Bee, the Jinchuriki of Hachibi, who singled out the entire team Taka and almost killed Uchiha Sasuke, if not for Jugo to save Sasuke at that time by merging some of his cells with Sasuke then Sasuke might have been done for at that time.

And even then, Killer Bee might have killed the complete Team Taka if he didn't use that opportunity to sneak out of the village to take a holiday.

From both of these battles, it wouldn't be wrong to judge that whether it is Yondaime Raikage or the Jinchuriki of Hachibi, both of them had strength higher than Uchiha Sasuke when he awakened the Mangekyou Sharingan.

Although, we have to also take into account that Sasuke had just awakened Mangekyou Sharingan and did not master that completely at that time while both Ay and Killer Bee were already through countless battles and were more than familiar with their powers, still, it wouldn't be wrong to say that both of their strength reaches a high-tier Kage Level.

And when these two works together as the A-B Combo, they really make the strongest duo, therefore, the fact that Kuroto managed to escape from them is also not a small achievement.

The next thing Kuroto thought was about the suspicions on Shisui, 'I made such big disturbances this time as Homusubi, so the suspicions on Shisui should be completely cleared up.'

Now that the suspicions on Shisui are cleared up, Kuroto can calmly carry out the fusion of the two Mangekyou Sharingan pairs into the Eternal Mangekyou Sharingan and the Fire Nature Clone with Uchiha genetics.

But as said before, to fuse the two pairs of Mangekyou Sharingan into Eternal Mangekyou Sharingan, he has to first learn the Transcription Seal, and for that purpose, Kuroto will have to seek Shisui's help.

Because Kuroto thinks that only Uchiha Clan will have the knowledge of this seal, and there will be no scroll in Konoha's ninjutsu library about it.

It is because all the time Transcription came into play in the Canon, all the time it was used by the Uchiha, and nobody else, therefore, Kuroto thinks that this technique must be in the hands of the Uchiha Patriarch.

So, only Shisui can help Kuroto with this.

Then next comes the matter of Fire nature Clone with Uchiha clan genetics.

When thinking about this matter, Kuroto is in a bit of a bind.

The issue that is entangling him is the choice of genetics, whose genetics should he choose from? There are too many options that he has.

To be honest, if it is up to Kuroto, then Uchiha Madara is undoubtedly his first choice, but Kuroto did not consider this option more than a few seconds, this is because of two reasons, first is that Uchiha Madara's body age is really old so even if he was a beast in his prime and the first and the only person after the Sage of Six Paths to have awakened the Rinnegan, his body would have undoubtedly deteriorated to the point that Kuroto doubts whether the cultivated clone will be good enough.

The second and more important reason is that the place where Uchiha Madara's body is located/buried should only be known to Obito and Zetsu, therefore, Kuroto has no way of finding where that body is located and he certainly does not have enough time to specifically search for that location.

So, the option of using Madara's genetics is directly ruled out by Kuroto.

Then the next few choices that Kuroto has are, Hideki, Ryota, Fugaku, Shinichi, Shisui, Itachi, and even Sasuke is available for Kuroto to choose from.

Rubbing his hand over his chin, Kuroto muttered, "Which one to choose from, Fugaku? Hideki? Ryota? Shinichi? Shisui? Itachi? Or Sasuke?"

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