This Is Too Much of a Coward!

"Control, or fusion?"

Shinji was stunned at first, then immediately realized that 'Susanoo Lamp' could bypass the surgical process and complete the fusion of the pupil power of two pairs of eyes through Dojutsu.

At the same time.

This also made him understand that 'Susanoo Lamp's' control was control, and fusion was fusion.

The two were completely different concepts!

Control.

Refers to using the second pair of empty eye sockets to house the second pair of eyes, thereby obtaining part of the pupil power or Dojutsu of that pair of eyes.

This is Shinji's current state.

Normally, in a controlled state, one cannot obtain the full power of the second pair of eyes.

This is also easy to understand, as the second pair of eyes belongs to someone else, and a certain degree of rejection and resistance is unavoidable.

As for how much power can be obtained from the second pair of eyes, it depends on the strength of one's own eyes.

For example, if both are Mangekyo Sharingan, Shinji using his Mangekyo to control Fugaku's Mangekyo could only barely obtain fifty percent of the power of Fugaku's Mangekyo.

If Shinji himself possessed an Eternal Mangekyo Sharingan, then controlling a Mangekyo with an Eternal Mangekyo Sharingan would allow him to obtain seventy percent of the Mangekyo's power.

Further, if one were to control a Mangekyo with a Rinnegan, under absolute advantage, one could even unlock eighty to ninety percent of the Mangekyo's power, approaching complete control.

Fusion.

As the name suggests, it is to merge two pairs of eyes into one, completing the fusion of pupil power, at which point only one pair of eyes will remain.

All fusion has a cost, this is a natural law.

Just like in the original timeline, Sasuke fused with Itachi's Mangekyo Sharingan and successfully obtained the Eternal Mangekyo Sharingan, but could not perfectly receive all of Itachi's Mangekyo Dojutsu.

'Tsukuyomi' was lost in this way.

Therefore, the fusion of 'Susanoo Lamp' also has limitations.

It's just that 'Susanoo Lamp' has a characteristic, which is that the cost of fusion is determined by the strength of one's own pupil power.

Fusing Mangekyo with Mangekyo, the cost might be the same as surgical fusion, and it's highly likely that the Dojutsu of the fused Mangekyo will be lost.

Even if one's own pupil power is not as strong as the other's, fusion may fail.

However, if one fuses a Mangekyo with an Eternal Mangekyo Sharingan, the cost will be less, at a level that is barely acceptable.

And so on, the stronger one's own eyes are, the smaller the cost of fusion will be.

If the strength of one's own eyes reaches a certain level, one can even attempt to fuse with the eyes of other Kekkei Genkai, such as the Byakugan!

After understanding this information about 'Susanoo Lamp', Shinji did not rush to make a decision. Instead, he first deactivated 'Susanoo', to avoid the pointless consumption of pupil power, and then sat quietly in the cave to think.

From the characteristics of the 'Susanoo Lamp' Dojutsu.

Undoubtedly, the stronger one's own pupil power, the greater the room for maneuver, whether it is control or fusion, it is the same in this regard!

Therefore, from this perspective, improving the pupil power of one's own eyes is the best choice.

Moreover, Shinji also discovered that after controlling Fugaku's Mangekyo Sharingan, his pupil power had increased significantly, exceeding the standard of a normal Mangekyo.

But he still could not replenish his pupil power by refining Yin Release Chakra on his own.

In other words, the current strength of his pupil power is below that of an Eternal Mangekyo Sharingan, but above that of a regular Mangekyo Sharingan.

"It seems that fusing into an Eternal Mangekyo Sharingan first, which can supplement pupil power independently, is the way to go!"

Shinji had a plan in his heart, but his expression was very solemn.

After controlling Fugaku's Mangekyo with 'Susanoo Lamp', he not only understood much about 'Susanoo Lamp' but also obtained much information about Fugaku's Mangekyo.

One piece of information made him feel very troublesome.

That was that Fugaku's Mangekyo's pupil power was actually superior to his own!

In other words, he was currently controlling someone stronger than himself!

"His Mangekyo, which awakened seven or eight years ago, has more preserved pupil power than my Mangekyo, which has only been fresh for a few weeks. How did he use it?"

Shinji was speechless.

He knew that his Mangekyo Sharingan had been used a bit too much recently.

But Fugaku's Mangekyo Sharingan awakened during the Third Shinobi World War, and judging by the time, it was even before Sasuke was born.

After so many years, the preserved pupil power was still so much more than his.

"This is too much of a hoarder!"

The judgment of 'Susanoo Lamp' would not be wrong, so Fugaku had hardly used any Mangekyo Dojutsu after awakening his Mangekyo Sharingan.

He might not have even activated 'Susanoo' once in his entire career with the Mangekyo Sharingan.

Shinji frowned slightly.

The moment he considered fusion, 'Susanoo Lamp' had already given him a premonition.

Controlling someone stronger than himself, the probability of fusion failure is extremely high!

This also made him understand why, throughout the history of the Ninja World, only blood relations have successfully fused for the Eternal Mangekyo Sharingan.

Whether it was the brothers Madara Uchiha and Izuna Uchiha.

Or the brothers Sasuke Uchiha and Itachi Uchiha.

It was the same for all of them!

Because only with blood relations whose bloodlines merged could the strength relationship between the two Mangekyo Sharingan be blurred, preventing them from resisting each other.

Although Shinji and Fugaku Uchiha were from the same clan, they were not blood relations.

The chakra traits rooted in their Bloodline Limits were distinctly different, so Fugaku's Mangekyo Sharingan would instinctively resist fusion.

If the strength relationship were reversed.

With the 'Susanoo Lamp', Shinji could forcibly fuse Fugaku's Mangekyo Sharingan.

But currently, his Mangekyo Sharingan was weaker, while Fugaku's was stronger, so the 'Susanoo Lamp' could only help him control Fugaku's Mangekyo Sharingan for now.

Shinji closed his eyes, silently sensing his own Mangekyo Sharingan.

In fact, controlling it with the 'Susanoo Lamp' was a form of mild fusion.

Just like a moment ago, the instant he controlled Fugaku's Mangekyo Sharingan, the Dojutsu his own Mangekyo Sharingan had lost was also restored to a certain extent due to external stimulation.

He estimated based on feeling.

While controlling both pairs of Mangekyo Sharingan, his Dojutsu was about 1.5 times what it was initially.

Because he didn't know if the phenomenon of Dojutsu recovery that occurred when he first controlled the second pair of eyes was a one-time thing, or if it could be triggered again later.

Therefore, he couldn't determine if he currently possessed a slight ability to recover Dojutsu.

At the same time.

Perhaps because Shinji's own Dojutsu slots were very few, this time, he was fortunate enough to gain the two Mangekyo Dojutsu techniques contained within Fugaku's Mangekyo Sharingan.

Among them, the Dojutsu contained in his left eye was, as expected, 'Amaterasu'.

From this perspective, the fact that Itachi and Sasuke both possessed the 'Amaterasu' Dojutsu was likely due to the telepathic nature of the Sharingan, as well as bloodline inheritance.

And when Shinji learned about the Mangekyo Dojutsu technique in Fugaku's right eye, his expression suddenly became peculiar.

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