From the moment Kazuki integrated the Ōtsutsuki physique, he clearly felt his physique growing at a visible rate. This growth rate was no less significant than when he previously integrated Asura's physique, which was a huge help to him.
Thump... Thump... Thump...
Just as Kazuki felt a significant increase in his vitality, Chakra, and even strength, he suddenly heard his own heartbeat. At the same time, his Sharingan transformed into the three-tomoe state, and the fluctuation of his ocular power was faintly discernible.
The three-tomoe Sharingan rotated rapidly, then purple ripples appeared. Not long after, his eyes transformed... into Rinnegan.
"Has the Rinnegan awakened?" Kazuki covered his eyes, feeling his strength had significantly increased once more.
Previously, he considered himself one of the top beings in the Ninja World. Even against Madara and Hashirama during the Valley of the End era, he believed he had the strength to contend, and they should be on the same level.
However, after awakening the Rinnegan, Kazuki's strength saw another massive improvement. He now felt terrifyingly strong, but he still couldn't get ahead of himself.
He wasn't sure if he had reached the Six Paths level yet. Even if he did, he would be at the weakest tier. At least, he didn't believe his current self was a match for Hagoromo.
Besides Hagoromo, Isshiki was also someone he needed to be wary of.
And then there was Ōtsutsuki Shibai, the strongest within the Ōtsutsuki clan. No one knew if everything happening in the Ninja World was part of Shibai's schemes.
That was an existence that transcended dimensions and the concept of life and death.
Shibai was different from other Ōtsutsuki, and Kazuki wanted to surpass him.
In just a moment, Kazuki understood the unique ocular techniques of his Rinnegan.
Besides being able to control the abilities of a normal Rinnegan, his left and right eyes each controlled two distinct ocular techniques. His left eye's technique was Takemikazuchi, which allowed him to control all lightning on the entire planet.
This was different from Sasuke's Kirin, which required specific environmental conditions to use. Once Takemikazuchi is used, he essentially becomes the true god of this planet.
His right eye's technique was Enmasatsu. This ocular technique was specifically for souls, or more precisely, specifically for the Ōtsutsuki. With this move, Kazuki could completely eradicate the souls of the Ōtsutsuki.
Of course, Enmasatsu had a huge toll on Kazuki. It not only consumed a large amount of ocular power and Chakra but also required creating an opportune moment.
If a powerful enemy was still alive, even if Enmasatsu cursed them, it might not succeed. But if the opponent's physical body was destroyed, then cursing them would become effortless.
It was a pity that killing the opponent through a curse didn't yield benefits. Otherwise, Kazuki would genuinely want to curse Shibai to his death.
Shibai had abandoned his physical body and was currently only in a soul state. Unfortunately, even killing Shibai would be of no use. Otherwise, Kazuki would want to give it a try.
He didn't know why, but logically, the ocular techniques born from both the Mangekyo Sharingan and the Rinnegan were named after Japanese gods.
For example, Takemikazuchi is also the name of the Thunder God, and it is said that Sasuke's prototype was Takemikazuchi.
Regardless, his Rinnegan was quite useful. It was just a pity that it wasn't a tomoe Rinnegan.
Compared to a regular Rinnegan, Kazuki clearly preferred Sasuke's six-tomoe Rinnegan. At first, Kazuki considered whether to concentrate all his ocular power into one eye, but after careful thought, he decided against it.
Who knew if the six-tomoe Rinnegan could be deactivated? Even if it could, Kazuki wanted both of his eyes to evolve into the Rinnegan.
His inability to evolve into the Mangekyo Sharingan had already displeased him, he had missed out on two Mangekyo Sharingan ocular techniques.
Thankfully, the Rinnegan didn't disappoint him.
At least in the future, when he confronts the Ōtsutsuki, he won't need so many reservations.
Wait, he didn't seem to need to fear Hagoromo and Hamura anymore.
After all, his Nail-Head Seven Arrow Book was specifically designed to counter souls. Perhaps their strength might be greater than Kazuki's, but his ocular technique seemed to naturally counter them.
So, did he still need to continue hiding? Or should he just stop being human?
Soon, Kazuki put the thought off his mind. Hiding or not hiding, it actually didn't matter. Getting stronger was enough.
"Kazuki, are you alright?!"
Just as Kazuki was about to deal with someone like Kazahana Dotō, who he could easily handle with a single glance, Mikoto and Rinka rushed into his room.
"What's wrong?" Kazuki looked at Mikoto and Rinka with slight confusion, only to find both women staring at him in a daze.
That was… the Rinnegan?
Both Mikoto and Rinka were descendants of long-standing clans. The Rinnegan, Sharingan, and Byakugan were known as the three great dōjutsu.
The Rinnegan was almost a legendary eye, belonging to the Sage of Six Paths.
As for the Sharingan, with Madara's past existence, its power was also demonstrated, placing it on par with the Rinnegan, which seemed understandable.
Regarding the byakugan, if it was a common byakugan, it seemed unqualified to be on par with the sharingan and rinnegan.
However, Rinka knew that the Hyuga clan possessed special methods to unleash terrifying power from the byakugan. Although the side effects and backlash were immense, once done, the power of the byakugan was visibly clear.
However, these things were only known by core members of the main family like Rinka. In the eyes of outsiders, the byakugan's power couldn't compare to the sharingan and rinnegan.
But why did Kazuki possess the rinnegan?
For some reason, Rinka looked at Kazuki with complex emotions in her eyes, seemingly with a hint of longing.