"The Eternal Mangekyo Sharingan, theoretically speaking, requires the fusion of the Mangekyo Sharingan of two siblings to be born. However, in the history of the Uchiha, only Madara has ever awakened the Eternal Mangekyo Sharingan."
"Indra awakened the Mangekyo Sharingan, but due to his bloodline, his Mangekyo Sharingan itself would not go blind. As for me, due to certain circumstances, although I can use Susanoo, I haven't awakened the Mangekyo Sharingan."
As he spoke, Kazuki sighed, "Actually, it's caused by the Uchiha clan's bloodline beginning to degenerate. Theoretically, the Mangekyo Sharingan shouldn't have a distinction between Mangekyo Sharingan and Eternal Mangekyo Sharingan. The genes between siblings are similar, allowing the eyes to fuse. In reality, I feel this should be about similar genes between siblings, which allows the Mangekyo Sharingan to fuse and resolve the genetic defect."
"To compensate for deficiencies in the bloodline?" Tobirama nodded thoughtfully.
As for Kazuki saying that the Uchiha had deficiencies, didn't that imply the Senju was superior to the Uchiha?
The Senju wouldn't experience any blindness.
Although their bloodline had also degenerated, that was based on the Senju constantly intermarrying with other clans, which more or less contaminated their bloodline, thereby weakening the strength of the Senju clan's bloodline.
However, the Senju clan would often produce one outstanding individual whose bloodline would be greatly enhanced, and then their descendants would have a much higher bloodline purity than other Senju clan members.
Tobirama now knew this was due to the reincarnation of Asura Chakra. Logically, the reincarnation of Indra Chakra should also be able to achieve a similar effect.
The reincarnation of Indra Chakra is indeed very strong, and the purity of their bloodline is also superior to that of ordinary Uchiha. The problem, however, is that Indra Chakra reincarnations seem to rarely have offspring.
Take Madara for example. Logically speaking, if he had descendants, his offspring would be very outstanding. Unfortunately, Madara seemed uninterested in women and had no descendants.
In this way, the degeneration of the Uchiha clan's bloodline seems understandable.
In the past, the Uchiha clan was incredibly powerful, and the single Senju clan was no match for them. This is recorded in the history of the Senju clan.
There was nothing to hide. To contend with the Uchiha clan, the Senju clan united with many other clans.
But as time went on, the Uchiha clan lost its initial unparalleled dominance. By Tobirama's generation, the Senju clan and the Uchiha clan were evenly matched.
Even without the help of other clans, the Senju clan had the confidence to fight against the Uchiha clan. This was a huge step forward, and of course, also a regression for the Uchiha clan.
Now, hearing Kazuki say this, Tobirama felt it made a lot of sense.
"Any Uchiha with sufficient bloodline purity and emotional sensitivity has a chance to awaken the Mangekyo Sharingan, but achieving the Eternal Mangekyo Sharingan is quite difficult. Fugaku's eyes should be the kind that won't go blind, but in terms of ocular power intensity, there should still be some deficiency. I suspect his Eternal Mangekyo Sharingan is not perfect, at least not as perfect as Madara's. This prevents him from properly controlling his ocular power, allowing you to detect it."
Kazuki then continued, "As for his other pair of eyes, I assume they are his father's eyes."
"Ryoma's?" Tobirama looked in Ryoma's direction, nodding slightly, agreeing with Kazuki's idea.
"If it's a father and son, I suppose they can also fuse. But ultimately, half of a person's genes come from their mother, so the fusion for the Eternal Mangekyo Sharingan isn't as perfect as imagined."
Kazuki said, "That should be it. Coupled with the First Hokage's cells, his ocular power definitely won't be depleted."
Kazuki thought of the future Obito. He possessed almost inexhaustible ocular power simply by relying on half a White Zetsu body and Hashirama's cells.
Given Fugaku's situation, it must be better than Obito's.
Fugaku had absorbed another pair of relatively compatible Mangekyo Sharingan, and he also possesses dual Mangekyo Sharingan. In these aspects, he is naturally leagues above Obito.
Obito mainly relied on Kamui. Without Kamui, he would be nothing.
It should be noted that Obito was previously just the dead last of the Uchiha clan.
As for Fugaku, he is at least a genius of the Uchiha clan. If Fugaku's situation is truly Madara's doing, then it's not impossible that he received Madara's legacy.
What Obito has, Fugaku probably has too.
The current Fugaku has likely grown to the level of Sasuke who had just gained the Eternal Mangekyo Sharingan at the beginning of the Fourth Great Ninja War.
After all, Sasuke possessed a perfect Eternal Mangekyo Sharingan, and although he was easily pierced through by Madara, it doesn't negate his power at the time.
As for Indra Chakra, Kazuki felt that Madara must have done something to Fugaku. To be honest, he didn't understand if Indra Chakra was absolutely necessary to acquire the Eternal Mangekyo Sharingan.
If he wasn't powerful, then Fugaku would have been a huge hidden danger.
"He is indeed a formidable opponent." Tobirama nodded slightly, then shook his head.
Fugaku's fate was already sealed. He was indeed very powerful, but his opponent was Kazuki.
Besides the Sage of Six Paths, who else in the Ninja World could be Kazuki's match?
Then, Tobirama looked at Fugaku with eyes full of inquiry and curiosity. Perhaps this time, he could obtain a pair of Eternal Mangekyo Sharingan for research.
Previously, he had always wanted to research Madara's Mangekyo Sharingan, but Hashirama wouldn't allow it, and Tobirama chose to listen to his older brother's wishes.
Now that such an opportunity presented itself, it would be strange if he were to miss it.
***
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