Perhaps it was because Shinji possessed the powerful "Six Tomoe Rinnegan," or perhaps due to his meticulously designed compound sealing formula, or maybe it was the massive chakra collected by Mumei on the other end of the "Yachihoko" connection.
In short, the process of sealing the Ten-Tails went incredibly smoothly.
Even after devouring the nine Tailed Beasts and becoming its complete form, the Ten-Tails remained absurdly obedient in front of Shinji. Let alone a backlash, there wasn't even the slightest hint of resistance.
Compared to Obito in the original timeline, who risked his life and barely managed to seal the Ten-Tails at the cost of nearly losing control, the difference was like night and day.
"Pupil power is the key!" Shinji soon realized.
The biggest difference between his current self and Obito, who only had a single Rinnegan in the original timeline, was pupil power. That was why Obito struggled so much, while he found it so effortless.
Without becoming complacent, Shinji quickly inspected himself.
After sealing the Ten-Tails into his body, he felt a certain fusion of chakra natures occurring within him. This was something that hadn't happened since he transplanted the First Hokage's cells. Even when he awakened the Rinnegan, such a violent fusion of chakra natures hadn't occurred within his body.
Next, the chakra within him climbed rapidly, changing almost every second.
This sensation of endless power filling him briefly made him lose himself, giving him an urge to find an opponent to test it on immediately.
However, he quickly snapped out of it and dismissed the thought.
Slowly descending from an altitude of a thousand meters to the ground, Shinji sat cross-legged and began to sense the changes in his body more meticulously.
First was the chakra.
How much the quality of his chakra had improved, Shinji couldn't quantify yet, because this had entered a blind spot in his previous knowledge and required him to explore anew.
Compared to quality, the increase in chakra quantity was significant.
So far, he felt that the amount of chakra in his body had increased by at least fifty times, and this increase was still continuing!
Then came his eyes. He was surprised to find that the "Six Tomoe Rinnegan" in his sockets had gradually changed from pale purple to deep red. At first glance, it looked like a Sharingan with the ripple pattern of a Rinnegan.
"It actually became exactly like the Ten-Tails' Rinnegan..."
The change in color of the "Six Tomoe Rinnegan" was just the surface. The deeper changes, such as pupil power and ocular techniques, were what Shinji cared about most, and in this regard, he was not disappointed.
Although the increase in pupil power wasn't a fifty-fold jump like his chakra quantity, it was still significant.
At this moment, he estimated his pupil power was at least five times stronger than before he became the "Ten-Tails Jinchuriki."
One must know that increasing pupil power is extremely difficult. For example, Sasuke in the original timeline showed no obvious increase in pupil power during the decade following his final battle with Naruto at the Valley of the End until his daughter Sarada grew up.
In fact, he even became weaker due to losing the Tailed Beast chakra, often suffering from pupil power exhaustion and struggling to sustain fights.
So, a full five-fold increase in pupil power was exaggerated enough to exceed Shinji's previous expectations, leaving him very surprised: "Is this the power of the Ten-Tails Jinchuriki?"
Calming down, he did not feel joy or pride because of the substantial increase in strength.
On the contrary, this caused him to question his previous assessment of the Hegemon's strength with unprecedented intensity.
"The margin of error was too big; my previous assessment was like looking at the moon's reflection in a well!"
He shook his head and sighed softly. For a brief moment, he even felt that his former self had been a frog in a well.
When the disparity in power between two sides is too vast, the weak's assessment of the strong is simply absurd and laughable.
However, just as he had restrained his arrogance earlier, Shinji quickly suppressed the sense of dejection rising in his heart.
Humility is not self-deprecation!
He had walked step by step to where he was today and achieved many results. Even if he was a frog in a well before, he had now jumped out of the well that limited his vision and knowledge through his continuous efforts.
"As long as I can continue to become stronger and keep learning, I will definitely find a way to defeat the Hegemon!"
Shinji stopped letting his thoughts wander and proceeded to check the changes in his ocular techniques.
Currently, not counting the space-time technique "Kamui" contained in Obito's right eye, which he controlled via the "Susanoo Tomoshibi," he had mastered over a dozen ocular techniques, namely "Goshingu," "Susanoo Tomoshibi," "Jikibi," "Wazunagi," "Takamagahara," "Susanoo," "Shinra Tensei," "Bansho Ten'in," "Chibaku Tensei," "Rinne Tensei," and so on.
After he successfully became the Ten-Tails Jinchuriki, all of these ocular techniques, without exception, underwent some changes.
Some techniques increased in intensity, such as "Goshingu," "Shinra Tensei," "Bansho Ten'in," "Chibaku Tensei," and "Susanoo"; their base power was significantly boosted.
Others saw an increase in effective range, such as "Jikibi," "Wazunagi," "Rinne Tensei," etc. Their effective range doubled or more. Taking "Jikibi" as an example, its effective range had reached over a thousand kilometers, basically covering several countries.
The last type was an improvement in functionality, represented by Shinji's unique technique, the "Susanoo Tomoshibi."
As Shinji's pupil power increased, the ability of the "Susanoo Tomoshibi" had also improved significantly several times. Initially, besides his own eyes, it could only control one extra pair of eyes at most. Later, it became two extra pairs. But by now, his "Susanoo Tomoshibi" could control an additional five pairs of eyes.
In other words, his current "Susanoo" now had six pairs of eye sockets.
Of course, these six pairs weren't crowded onto one face. Shinji activated "Susanoo" to observe; its head now possessed three faces—one in the center, and one on each side. The six pairs of eye sockets were evenly distributed across the three faces, with each face having two pairs of sockets, one above the other.
"Tsk tsk, this really looks a bit ferocious!"
Shinji couldn't help but joke to himself.
Because he discovered that his "Susanoo" had not only grown three faces, but it seemed that if he wished, it could also extend six arms, literally becoming a "Three-Headed, Six-Armed" deity.
The improvements to the other techniques were actually within Shinji's expectations. He just hadn't expected that his "Susanoo Tomoshibi" could improve further. Now that it could control five extra pairs of eyes at once, it gave him many more choices for control.
After all, he had collected many eyes by now, enough for him to pick and choose.
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