While he was complaining endlessly in his heart, a mechanical voice suddenly rang out in his mind.
"Your Eternal Mangekyō Sharingan, having heard the host's repeated complaints, became extremely furious. It directly doubled its training and evolved into the Rinnegan."
Hearing this voice, Ryōsuke was completely stunned, and great joy filled his heart.
'Has it already evolved into the Rinnegan?'
He had originally wanted to go straight to the Rain Village to see Nagato. As long as he saw the other party's Rinnegan, perhaps his own would be able to evolve too. There were precedents for this; seeing higher-level eyes would cause his own to upgrade.
He didn't expect it to upgrade directly just because he complained a bit in his heart.
Perhaps his Eternal Mangekyō Sharingan really wasn't enough anymore.
Actually, although the Eternal Mangekyō Sharingan seemed incredibly powerful, it was still not worth mentioning in front of the Rinnegan. Previously, he thought his Eternal Mangekyō Sharingan could easily defeat Nagato, but that was only because of his own inherent strength. It wasn't because the Eternal Mangekyō Sharingan could rival or even defeat the Rinnegan.
After all, in the original storyline, Uchiha Madara, who had awakened the Rinnegan, was able to instantly kill Uchiha Sasuke. He relied on his unique and incredibly powerful Dōjutsu, Limbo: Border Jail.
He could use Limbo to split off his own shadows. Ordinary people could neither see nor sense these shadows. The shadows could be used to block opponents' attacks for the main body, or to launch surprise attacks. Only those who possessed the Rinnegan could see these shadows, or those who had learned Six Paths Senjutsu could sense them. Even Uchiha Sasuke with his Eternal Mangekyō Sharingan couldn't see them at all, and even Naruto with his Senjutsu couldn't sense them.
Thinking about it this way, it would still be a bit difficult if he had to deal with Uchiha Madara. Although he no longer fell into the category of ordinary people, it was still unknown whether he could see the shadows that guy split off.
Of course, it would only be a little difficult; it didn't mean he wouldn't have a way to deal with Uchiha Madara. Even if the opponent could split off invisible shadows, he could just crush all tricks with absolute power by directly opening the Seventh Gate of the Eight Inner Gates and one-shotting him. Even if he couldn't one-shot him, severely injuring or crippling him so he couldn't move should still be very possible.
Thinking about it this way, there was nothing to worry about.
Of course, now that he had awakened the Rinnegan, he would naturally be able to see the shadows that guy split off, so there was really nothing to worry about.
Originally, his only trump card was the Eight Inner Gates, but now he had the Rinnegan. So this could barely be considered a trump card as well. Of course, there was still no way to compare it to the Eight Inner Gates. The Eight Inner Gates remained his ultimate trump card.
Now that he had new eyes, he wanted to see what it felt like to activate them, so he directly exited the illusion space.
Meanwhile, the Five-Tails, Kokuō, watched as this guy exited the illusion space.
'He must have backed down because of what I said,' it thought. 'A mere mortal wanting to make a Tailed Beast submit is simply a pipe dream. He must have figured it out by now. It's for the best that he retreated. Now that I've fallen into this person's hands again, I don't know where I'll be sealed next. But it doesn't matter; I'll end up sealed inside a human body anyway.'
'These foolish humans, always wanting to use my power.'
Actually, it didn't really mind staying in the sealing space inside a human body. Because there was less to deal with in that space, making it quite comfortable. However, the living space was cramped, its power was constantly being siphoned away, and it couldn't run freely. This made it feel a bit bored.
'I wonder when the person the Sage of Six Paths spoke of—the one who will lead us Tailed Beasts on the right path—will finally appear.'
Returning to reality, Ryōsuke indeed felt a strange change in his eyes. They felt much more powerful, and he sensed that simply injecting chakra would transform them into the Rinnegan.
'So what am I waiting for?'
He immediately injected an ample amount of chakra into his Eternal Mangekyō Sharingan. The crimson Eternal Mangekyō Sharingan instantly changed, turning into the pale purple Rinnegan.
Ryōsuke instantly felt his Dōjutsu power increase massively, though he also noticed that these eyes seemed to consume quite a bit of chakra. He finally understood why Nagato, the wielder of the Rinnegan, was so emaciated, even though he belonged to the Uzumaki Clan, a clan known for its abundant chakra.
But it was still far from enough.
Fortunately, this level of consumption was nothing to him. After all, his current chakra reserves were as massive as the Nine-Tails'. Senju Hashirama possessed a volume of chakra equivalent to the Nine-Tails, and Uchiha Madara, who stood on equal footing with him, was the same. That was why Uchiha Madara could use the Rinnegan to unleash various techniques; otherwise, he would have been sucked dry long ago.
If one were to trace its origins, the Rinnegan didn't actually belong to this planet's power system but was an extraterrestrial power, so such massive consumption was only natural.
Despite this flaw, he was still extremely happy. After all, these were the eyes that controlled life and death, possessing the highest Dōjutsu power in the shinobi world. Originating from the ultimate Dōjutsu of the Divine Tree's Chakra Fruit, obtaining it automatically granted mastery over the six chakra nature transformations, as well as Yin and Yang, bestowing extraordinary abilities.
Perhaps he could truly be considered a God King now.
He could clearly feel that he was now capable of using ninjutsu of the other five natures. Of course, while he could use ninjutsu of other natures, he felt that his Fire Style had received an even greater boost. As for Yin and Yang Style, he still needed to carefully comprehend those two; one could create life, while the other could destroy it.
He was still pleasantly surprised. He hadn't expected to actually complete the evolution of the Rinnegan, which would be highly beneficial for many of his upcoming plans.
Convincing Tsunade to conquer the shinobi world with him, for instance. She was his woman now, after all, so if he could avoid using force, he naturally would. With these eyes, he should be able to persuade her much more easily.
His plans still required the help of the Leaf Village and the Land of Fire. Of course, if he was going to unify the shinobi world, then the so-called Land of Fire wouldn't be necessary anymore. He couldn't possibly fight to build someone else's hegemony; he was going to take control of the Land of Fire himself.
Haku and Fū stared blankly as Lord God King's Eternal Mangekyō Sharingan transformed into different eyes—purple eyes with several concentric ripple patterns inside.
His previous eyes had given them a feeling of immense majesty. But now, these new eyes gave them an indescribable feeling, as if he were standing high above everything else.