Warlock Invasion of Naruto.

It's important to know that the prerequisite for his victory over Nagato was obtaining information that his master Jiraiya had risked his life for, as well as the initial delaying efforts of other ninjas in Konoha.

Even so, he was ultimately no match for Nagato. It was only because Hinata protected him with her life that he unleashed the Nine-Tails' chakra while losing his mind, thus breaking free from Nagato's control. With his father's help, he regained his senses, re-entered Sage Mode, and defeated all six Paths of Pain.

Judging from Kushina's appearance, her strength is no less than Nagato's, and she controls the power of the fully-formed Nine-Tails.

"I never imagined that Kushina from another world was so amazing, able to persuade another version of me," even the Nine-Tails inside Naruto couldn't help but exclaim.

The reason Naruto was able to use his chakra was not only because of the reconciliation between the two sides, but also mainly because Naruto was the reincarnation of Ashura's chakra and possessed the power of the Six Paths Elder.

Otherwise, the chakra of the strongest tailed beast is not something an ordinary person can withstand, not even half of it.

Kushina from the other world, despite lacking the chakra of Indra and Ashura, was able to control the power of the fully-formed Nine-Tails, which is truly impressive.

"As expected of... the Red Hot Chili Pepper!" Naruto said with a smile. Kushina's current strength is even greater than his strength at the beginning of the Fourth Shinobi World War.

As for their strength in the final battle, it wasn't acquired through their own training. It was because he and Sasuke each received the Six Paths Yang Power and Six Paths Yin Power from the Sage of Six Paths, which fully activated the power of Ashura and Indra's chakra within their bodies.

After losing their arms at the Valley of the End, the two also lost the power of the Six Paths Yang and the Six Paths Yin. If they were to encounter Madara Uchiha now, they would probably find it difficult to withstand him.

Fortunately, the Otsutsuki clan members they encountered, while possessing immense chakra comparable to Madara Uchiha in Six Paths, were not particularly strong in actual combat.

The arrogance of the Otsutsuki clan can be a major disadvantage in battle, at least when the strength of the two sides is not overwhelmingly superior.

However, they were still uncertain about the true strength of the enemy leader, Jigen, since they did not know the Kara organization that they had encountered, which was suspected to be a remnant of the Otsutsuki clan.

Whether it was when they joined forces to fight against Momoshiki and Kinshiki of the Otsutsuki clan, or when Sasuke and Boruto faced Urashiki, they almost always won by a narrow margin.

Given the cautious nature of the Kara organization, if they were to encounter an Otsutsuki clan member with chakra as powerful as Madara Uchiha in Six Paths, and who was also inherently cautious, it would be very difficult for Naruto and Sasuke to defeat them.

Now, after so many battles, they can no longer say that they can defeat the enemy by relying on the strength of their comrades. Although Naruto still firmly believes that the power of the group can overcome everything, he can also recognize reality.

To fight against the Otsutsuki clan, one must possess power similar to theirs.

For example, there's Naruto with the Nine-Tails, Sasuke with the Rinnegan, and Boruto who awakened the Jōgan due to Urashiki Ōtsutsuki's power. However, Boruto can only provide assistance at crucial moments in battle, and the actual effect depends on the timing.

That is why Naruto is willing to believe Issei (Hakuba). They need to unite all the forces they can to fight against the Otsutsuki clan.

"Is this the strength of the Otsutsuki clan? It feels quite different from Six Paths Madara. In other words, the strongest one right now is Kaguya." After watching the detailed footage of the final battle in Naruto's memory, Issei (Baiyu) was quite surprised. Six Paths Madara's combat power was indeed extremely exaggerated.

Sure enough, the strength gained step by step through self-improvement is much stronger than starting at the maximum level.

However, although those Otsutsuki clan members were very poor in actual combat, their innate abilities were extremely abnormal.

In terms of spatial abilities, Kaguya Otsutsuki is undoubtedly the strongest. If she had more practical experience with this ability, Naruto and Sasuke would have been defeated without a doubt.

Even if it were Issei (Shiroha) using this ability instead of Momoshiki and Urashiki, he probably wouldn't have been defeated even if Sasuke hadn't lost his Six Paths Yang and Six Paths Yin powers.

The abilities of the Otsutsuki clan, like Shiraha's innate magic, can be acquired without learning.

However, Bai Yu at least advanced step by step through cultivation. After leveling up, he will continue to familiarize himself with the abilities of his innate spells and the possible tactics and battle strategies.

Once the Otsutsuki clan plants the Divine Tree and swallows its ripe fruit, they essentially ascend to the highest level in one step. This is equivalent to a newly initiated Level 3 wizard (sorcerer) skipping the three stages of materializing spiritual power—vaporization, liquefaction, and crystallization—and directly advancing to Level 4 Star-level wizard (sorcerer). Such an outcome would inevitably result in advancing to the weakest Level 4, perhaps even unable to use the "Star Domain."

However, judging from the information revealed by Urashiki Otsutsuki in Naruto's memories, as long as one keeps consuming Chakra Fruits, one can increase their strength directly without training and become almost immortal.

In terms of lifespan alone, the wizard civilization seems to be far inferior to the chakra civilization of the Otsutsuki clan.

After all, even a Star-level wizard only has a lifespan of about a thousand years. Even if they undergo various modifications, explore different planes, and obtain secret treasures to strengthen their body and soul, their maximum lifespan will never exceed ten thousand years unless they advance to the fifth level. In the later stages, whether they can guarantee the purity of their soul is probably an unknown.

As for Star-level warlocks, their lifespan depends on the strength of their bloodline origin.

Sorcerers like Bai Yu, who have a lifespan of over a thousand years at level one, are extremely rare.

Whether his lifespan will exceed ten thousand years after he advances to the fourth level is still unknown.

What we know so far is that if we can obtain cells from the Otsutsuki clan, or a large amount of their body tissue for experiments, and if we can capture a live Otsutsuki and put him on the operating table, Bai Yu's chances of advancing to level four will greatly increase, and the speed of advancement will also be greatly improved.

The key is the longevity of the chakra system, which allows those he values ​​to also live a long life with him.

As long as they keep consuming Chakra Fruits, Kushina and the others could even live longer than Shiraha.

It's not that the chakra system is ineffective in combat, but rather that these Otsutsuki clan members lack practical experience and skills.

However, this is not hard to understand, because if you always have overwhelming strength and encounter people who are much weaker than yourself, over time, it will really make people feel that they are invincible.

If Bai Yu hadn't obtained the "Book of Ancient Sorcerers," he wouldn't have believed that a powerful wizarding civilization could be defeated by an even stronger ancient civilization.

The ancient Yindo civilization even elevated the path of bloodline sorcerers within the wizard civilization to a completely new level.

"Now it seems that the history of the chakra civilization is probably not just a thousand years. It can only be said that the history of the ninja world is too short."

"If Kaguya Otsutsuki had the combat experience of Madara Uchiha, I wonder if she could fight against a true Star-level powerhouse."

"As long as I keep increasing my chakra, there might be a moment of qualitative change. If my energy level is equivalent to level four and I can't beat a star-level opponent, then if my energy level is equivalent to level five, I should be able to defeat a star-level opponent, right?"

Thinking about it this way, Issei (Baiyu) felt that the Otsutsuki clan was probably not weak, it was just that the Otsutsuki that had appeared so far were a bit weak.

To be able to physically traverse the universe and colonize planets to plant trees, one really needs considerable strength.

At this moment, Sasuke finished exchanging punches with Issei (Shiraha) and couldn't help but say, "Even though Kushina and Shiraha are both very strong, it will still take a long time for them to reach the level where they can help us deal with the Otsutsuki clan. I'm afraid we can't afford to wait that long."

Based on the battle scenes they remembered, Kushina and Shiraha were still weaker than them. Although they were second only to the two of them, the enemies they faced were too strong.

Furthermore, with the Land of Whirlpools now being rebuilt, it's impossible for Shiraha and Kushina to both come to their world to stay for an extended period and help them deal with the Kara organization and the potential emergence of the Otsutsuki clan.

“To deal with the enemies of your world, you two will naturally be the main force. Sometimes, even without our help in the battle, we can still help you,” said Yicheng (Baiyu).

"So what do you mean by cooperation?" Sasuke frowned slightly. He wasn't as easy to talk to as Naruto; he needed to clarify many things first.

Issei (Baiyu) looked at Naruto and Sasuke with a determined expression and said, "I only have one question: between you two now and yourselves back in the Valley of the End, who is stronger?"

Sasuke's expression shifted slightly, and he fell silent.

Naruto, however, said very seriously, "Sasuke and I haven't relaxed our training too much over the years. Our combat skills and teamwork are stronger than before, but because we lost the Six Paths Yin-Yang power of our great-grandfather, our current strength should be weaker than it was during the Valley of the End."

"So, you've cultivated for over a decade, during your prime years when you're at your peak in every aspect, yet your strength is still not as good as when you were teenagers? What have you been doing for the past decade?" Yi Cheng (Bai Yu) didn't mince words and pointed out the real problem incisively.

"You mean we need to increase our current strength to the level of the Valley of the End in order to deal with the Otsutsuki clan? Do you think that at our level, a significant increase in strength can be achieved with just a few words?! Gathering intelligence and investigating the Otsutsuki clan's whereabouts both require a lot of time and effort."

Seeing Issei (Baiyu) angrily confront Naruto, Sasuke retorted with a somewhat displeased expression.

“Sasuke, don’t get agitated. Issei (Shiraha) is right. After becoming Hokage, there are always endless official duties in the village, and I have indeed relaxed a lot in my training,” Naruto advised. Now, facing the Kara organization and the unknown Otsutsuki, strength cannot be improved in a short time.

"If you encounter powerful Otsutsuki clan members like Kaguya and Madara Uchiha again, you will have no choice but to confront them with overwhelming force."

Issei (Shiroha) looked at Sasuke and questioned him:

"There's something I don't understand. From your memories, it's clear that Uchiha Shin possesses a special constitution that ignores cellular rejection."

He conducted his own research and even mastered cloning technology, and could replicate the Mangekyou Sharingan on a large scale. Why didn't you think of using him to conduct cell experiments on the Otsutsuki clan?

After defeating the Otsutsuki clan, you didn't even bother to collect their body tissues and cells for experiments! What a fantastic opportunity to become stronger!

Naruto explained, "Human experiments may face many problems. Currently, all parties in the ninja world are quite restrained. Only Orochimaru has been conducting research in this area, but even he is subject to strict restrictions."

Yicheng (Baiyu) was speechless for a moment and retorted, "You need to understand one thing: in a sense, you are no longer human. There is no need for you to be so resistant to cell experiments."

Moreover, your conflict with the Otsutsuki clan is a life-or-death war between races and civilizations. The closer you are to the Otsutsuki clan at the cellular level, the greater your chances of defeating them.

If the Otsutsuki clan wins, everyone in the entire ninja world will likely become nourishment for the God Tree.

As he spoke, Issei (Baiyu) looked at Sasuke again: "If your arm were cultured with cells from the Otsutsuki clan and then transplanted and fused, your strength would definitely be significantly enhanced. If your other eye also evolved into the Rinnegan, wouldn't that increase your chances of defeating the Otsutsuki clan?"

"This..." Naruto wanted to explain for Sasuke that he hadn't accepted the arm transplant back then because he wanted to 'atone for his sins,' and even after all these years, Sasuke still refused to accept the arm transplant.

To be honest, Yicheng (Baiyu) felt somewhat helpless. Even though it was a world of extraordinary beings, if one's mindset could not be liberated, it would still greatly limit the development of civilization and the improvement of personal strength.

It seems that not only this world, but also the world in which the original body resides, needs a complete liberation of thought.

Human experimentation and cloning technology may cause many problems, but what are they compared to the extinction of all humanity?

Especially considering they had Shin Uchiha as an excellent human subject for experimentation, they actually killed him without even collecting his body tissue.

Furthermore, the fact that Orochimaru, this scientific research expert, was conducting his research under the close surveillance of Konoha and subject to various restrictions, yet still managed to produce results, can only mean that Orochimaru is truly exceptional.

“We have collected a small amount of the Otsutsuki clan’s body tissues, which are all sealed in the village’s Anbu headquarters,” Naruto explained.

Small amount?

When Yicheng (Baiyu) heard this word, his heart bled. What a waste of talent.

If the original body were here, it would probably be cursing loudly.

"Bai Yu is an expert in medical ninjutsu and clinical trials. As long as you have the body tissue of the Otsutsuki clan, with his training, your strength will definitely be greatly improved," said Issei (Bai Yu). "In addition, have you summoned the tailed beasts?"

"Why are we summoning the Tailed Beasts?" Naruto asked, puzzled.

"Even without the Gedo Mazo, if most of the chakra of the nine tailed beasts were concentrated in your body, making you a pseudo-Ten-Tails Jinchuriki, wouldn't your strength surpass that of the Valley of the End period?"

Issei (Bai Yu) said.

Naruto frowned: "I already possess the chakra of all nine tailed beasts within me, and I've promised to free all the tailed beasts. If I do that, how am I any different from the Otsutsuki clan?"

Yicheng (Baiyu) shook his head: "Of course there is a difference. That little bit of chakra will have a negligible impact on your strength. What use is it?! And why didn't you think of consulting the tailed beasts?"

Once you and Sasuke are defeated, your world will fall, and all these tailed beasts will be turned into chakra pills and consumed by the Otsutsuki clan.

It's just a temporary gathering within your body, giving you greater power to defeat powerful enemies. How do you know the tailed beasts wouldn't want that?

They might be even more anxious than you are!

“Naruto… what this kid said makes a lot of sense.” Just as Naruto was lost in thought, the Nine-Tails inside him spoke up. In fact, it had also thought about this issue. The nine tailed beasts were originally one. Although they did not want to merge back into one as the Ten-Tails, and only wanted to live their own leisurely lives, if this world were gone, their good days would naturally end.

Of course, Kurama didn't say anything before because it knew Naruto's personality too well; Naruto would find it hard to agree to such a suggestion.

Furthermore, Kurama (the Nine-Tails) has its own pride; even without the power of the other eight tailed beasts, it can still help Naruto defeat powerful enemies.

After all, it still has its last trump card—heavy particle mode.

“Naruto, maybe Issei (Baiyu) is right.” At this moment, even Sasuke was persuaded, because Issei (Baiyu) seemed even more anxious than them, and this emotion could not be faked.

Sasuke didn't get a new arm for two reasons: one was to atone for his sins, and the other was to keep the eyes his brother Itachi gave him.

Because once the arm cultivated from Hashirama's cells is transplanted, the power of the Uchiha and Senju will be completely fused, and his other eye will very likely evolve into the Rinnegan, thus completely changing his brother Itachi's eyes.

"Improving my strength isn't urgent for now. Even if you agree, it will still take some time. So I think you should take me to see Kabuto and Orochimaru first?"

Seeing that Naruto and Sasuke's attitude had softened, Issei (Baiyu) seized the opportunity, since the Otsutsuki clan's body parts were still sealed at the Anbu headquarters and wouldn't run away on their own.

Compared to Naruto and Sasuke, who are unaware of their own wealth, he was more interested in seeing what new technologies Kabuto and Orochimaru had developed over the years.

At the very least, the cloning technology should be brought back, and the descendants cloned by Shin Uchiha using his own cells should also have the ability to ignore rejection.

He is now eager to see Kabuto and Orochimaru in this world.

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