abnabooks #277 - The secret of another world, Luofu! The discovery of endless reincarnation!
#277 - The secret of another world, Luofu! The discovery of endless reincarnation!
That familiar face, Luo Fu almost guessed the girl's identity in the first moment.
The future Yamato Nadeshiko-like Uchiha Mikoto.
This book is first published on the entire network by 𝕥 𝕨 𝕜 𝕒 𝕟 . 𝕔 𝕠 𝕞
That's right.
This delinquent girl is actually the Uchiha Mikoto from the Limited Tsukuyomi, an existence with a completely opposite personality to the Uchiha Mikoto in the real ninja world.
"Hey, you guy, what are you staring at me for without saying anything?" Uchiha Mikoto from the Limited Tsukuyomi suddenly showed a burst of scarlet light in her eyes.
In the next moment, Uchiha Mikoto stared at Luo Fu with her two tomoe Sharingan and said, "See this? This is the Sharingan."
The corner of his mouth twitched slightly, Luo Fu never dreamed that Uchiha Mikoto from the Limited Tsukuyomi would give him such a big surprise.
But in the next moment, Luo Fu suddenly realized that Uchiha Fugaku had used his Sharingan that could see the future to see the so-called Luo Fu above all the worlds.
At that time, Luo Fu felt that something was wrong.
After all, although the Mangekyo Sharingan does have amazing power in the ninja world, any Mangekyo Sharingan has recognized Kage-level strength.
But in the final analysis, the Mangekyo Sharingan is just a product of the Otsutsuki clan's Rinnegan after it mutated and even weakened to a certain extent in the ninja world.
Theoretically, let alone the Mangekyo Sharingan, even the Rinnegan, or even the Rinne Sharingan with nine tomoe, could not possibly see through the heavens and the worlds.
Seeing that Luo Fu didn't respond to her for a long time, Uchiha Mikoto in the Limited Tsukuyomi world, who had a violent personality and was like a delinquent girl, suddenly became angry.
Two jet-black tomoe spun rapidly in her scarlet eyes.
Just as Uchiha Mikoto was about to cast a genjutsu on Luo Fu.
A slightly timid and anxious voice suddenly came from behind Luo Fu.
"Mikoto, what... what are you going to do?"
Looking in the direction of the voice, a girl with long scarlet hair, a pretty face flushed, and seemingly extremely introverted and shy, was actually Uzumaki Kushina, known as the Red Hot-Blooded Habanero in the real ninja world.
As expected, the Limited Tsukuyomi and the real ninja world are completely opposite.
This is not because the world itself has consciousness, on the contrary, all of this is a natural reaction.
Just like the effect of force is mutual.
The ninja world planet was plundered by the Divine Tree, and naturally, a negative effect occurred. Reflected in the Limited Tsukuyomi, it is that in the Limited Tsukuyomi, the personalities of these lives that are between reality and illusion will be completely opposite to reality.
Luo Fu is quite familiar with Uzumaki Kushina. Not to mention that before awakening his past life memories, Luo Fu himself almost became a couple with Uzumaki Kushina, just after the Nine-Tailed Fox attack, Uzumaki Kushina escaped because of Luo Fu. Although she still has a lot of resentment in her heart about Luo Fu's actions.
But to say that he is familiar with Uzumaki Kushina, Luo Fu can be said to be absolutely among the top in the ninja world.
Even Minato Namikaze may not be better than Luo Fu.
What Luo Fu is familiar with is the Uzumaki Kushina of the real world, while the personality of the Uzumaki Kushina in the Limited Tsukuyomi world is completely opposite.
But as long as Luo Fu interacts with the Uzumaki Kushina of the Limited Tsukuyomi in a way that is opposite to the real world, then he can easily make an accurate judgment.
"Tch." Slowly closing her Sharingan, Uchiha Mikoto said unhappily, "Kushina, this guy is sneaky, he must not be a good person. I was planning to use genjutsu to force him to tell me what his purpose is for appearing in Konoha!"
Luo Fu really didn't know whether to laugh or cry, he didn't expect Uchiha Mikoto in the Limited Tsukuyomi world to be so loyal to Konoha.
Uzumaki Kushina blushed and quickly came to Uchiha Mikoto's side and said, "Mikoto, maybe you misunderstood something. Let's go back earlier."
As she spoke, Uzumaki Kushina timidly glanced at Luo Fu.
When she noticed that Luo Fu's gaze was also looking at her, Uzumaki Kushina's face, which was already red, instantly became as moving as a ripe tomato.
Pulling on her best friend's sleeve, Uzumaki Kushina disappeared from Luo Fu's sight as if running away.
Watching Uzumaki Kushina disappear with Uchiha Mikoto.
Luo Fu didn't mean to chase after them.
For him, the remaining bit of the local world's power hidden within the Limited Tsukuyomi world is the most crucial thing.
Like the creatures of this world, whether it is Uchiha Mikoto who is different from the real world or Uzumaki Kushina, they are essentially like illusions created.
Walking in this village that is no different from the real Konoha Village.
Luo Fu came all the way to the outside of the Uchiha clan's residence.
The moment Luo Fu stood outside the Uchiha residence, a figure that caught people off guard appeared in Luo Fu's sight.
Affectedly sentimental, twisting and turning, obviously a burly image, but at this moment, he is acting effeminately.
What is even more unacceptable is that this guy actually has a Chinese character face with a beard.
The corner of his mouth twitched fiercely. Luo Fu's figure disappeared in place in an instant.
Really, seeing Uchiha Mikoto, who has a fiery personality and is like a delinquent girl, and Uzumaki Kushina, who has an introverted and weak personality, may make people's eyes light up.
But seeing Uchiha Fugaku appear in sight with a sissy attitude, this really made Luo Fu unable to hold back.
He disappeared in an instant, and after appearing on the Hokage Rock in the next moment, Luo Fu looked down at the direction of Konoha Village. His purpose in coming to the Limited Tsukuyomi this time was to find traces of the ninja world's local power, not to see these eye-straining scenes.
Standing on the Hokage Rock, overlooking Konoha Village, every move in the village fell into Luo Fu's eyes.
Even the slightest change could not escape his sight.
Unfortunately, even so, Luo Fu was unable to discover any power in the village that was different from the ninja world's chakra system.
Just as Luo Fu was secretly wondering if the remnants of the ninja world's local power in this Limited Tsukuyomi world were not in Konoha Village.
Inside the Hokage Building.
The high-level officials of Konoha Village, who were discussing the upcoming Third Ninja World War, were stunned in place at the same time.
"Is it an enemy?" Jiraiya, who is still a white-haired boy, rarely looked serious.
Unlike the unreliable one in the real world, the current Jiraiya really has a bit of the feeling of a Toad Sage.
As Jiraiya's voice fell, the Sannin and the elders gathered in front of the Hokage's desk, staring at the crystal ball manipulated by the Third Hokage.
On the crystal ball, the scene of the Hokage Rock was clearly presented.
On the Hokage Rock, a person who was obviously not from Konoha Village was standing on top of the Third Hokage's statue, overlooking the entire village.
Who made the Third Hokage's head the highest of the only three statues on the Hokage Rock now.
Standing on the commanding heights, you can see the situation of the entire Konoha Village more clearly.
"He is not from the village." Orochimaru, who has a sunny and cheerful temperament and is different from the real world, doesn't even have the habit of sticking out his tongue, looking like a male god.
"Sarutobi, why don't I go and find out what kind of person this guy is!" Danzo Shimura, who has not yet wrapped bandages around his face, asked tentatively.
"There is nothing to test, the Ninja World War is about to break out, appearing in the village at this time must be an enemy." Hiruzen Sarutobi said in a gloomy tone, "The purpose of this guy must be to find out the information of the village, whether he succeeds or not, he cannot be allowed to leave alive, let's take action together and completely leave this guy behind."
The moment the voice fell, the decisive and resolute Hiruzen Sarutobi directly put on his battle armor, summoned Enma for the first time, and asked Enma to transform into the form of a golden cudgel.
"Sarutobi, calm down." Danzo Shimura frowned and said, "This guy may not be an enemy, we should..."
"Quietly entering the village and peeping at everything in the village. If this kind of person is not an enemy, then who is?" Hiruzen Sarutobi looked at Danzo Shimura unhappily and said, "Danzo, you are already an elder of the village, don't be so naive and innocent anymore, otherwise you will regret it."
Danzo Shimura hesitated for a moment, but in the end, he couldn't say anything that would make people's eyes light up.
Under Hiruzen Sarutobi's decisive and resolute request, the Sannin and other top combat forces of the village followed Hiruzen Sarutobi to the Hokage Rock.
At this moment, he is peeping at every move of Konoha Village, looking for traces of the possible existence of the local world's power.
In the Hokage Building, such obvious movements, how could they be hidden from Luo Fu's sight.
His gaze swept across the entire Hidden Leaf Village, but he couldn't find any trace of the native power. Now, Luo Fu could only hope to find a clue from these core members of the Hidden Leaf.
Otherwise, Luo Fu would only have two choices: either give up and leave this world directly, heading to other Limited Tsukuyomi worlds, or exhaustively search the entire world for traces of that unknown power.
In just a short while, the members of the Hidden Leaf Village gathered around Luo Fu, completely surrounding him.
Facing these existences who looked exactly like people from the real world but had completely different temperaments and personalities,
Before Luo Fu could speak, Hiruzen Sarutobi, with his decisive personality, directly issued an order as Hokage, launching an attack on Luo Fu.
But the moment these people moved, a powerful force instantly restrained everyone in the Hidden Leaf Village in place.
Hiruzen Sarutobi, Danzo Shimura, the Sannin, and others, even if their faces were flushed red from holding back, couldn't move at all.
"Just who are you?" Hiruzen Sarutobi gritted his teeth, tightly gripping the Adamantine Staff in his hand, and stared at Luo Fu as he asked.
Luo Fu chuckled and said, "Third Hokage, Hiruzen Sarutobi? You are much more admirable than the real Hiruzen Sarutobi."
Although it was only a brief moment, Luo Fu keenly realized that the Hiruzen Sarutobi in the Limited Tsukuyomi world was indeed loved by the entire village.
And in terms of personality, the Hiruzen Sarutobi of the Limited Tsukuyomi world was more like a Danzo Shimura with a brain, strong but not lacking in confidence.
The people on the Hidden Leaf side were all stunned, completely not understanding what Luo Fu meant by the so-called real Hiruzen Sarutobi.
Luo Fu naturally had no intention of explaining.
A force instantly enveloped the Hidden Leaf members present.
After a moment, Luo Fu revealed a disappointed expression.
He still couldn't find any traces of the native power on these core members of the Hidden Leaf.
Just as Luo Fu hesitated, wondering whether he should continue searching every inch of this world or simply leave this Limited Tsukuyomi and look for another way,
An outlandish idea suddenly sprouted in Luo Fu's mind.
The current Limited Tsukuyomi world was at the time of the outbreak of the Third Shinobi World War, and this Luo Fu was a graduate of the Sannin school, although Luo Fu's graduation from the ninja school was more like being forcibly pushed onto the battlefield.
But it was undeniable that, theoretically, there should indeed be another Luo Fu with a completely opposite personality to him at this time.
The moment this thought sprouted, Luo Fu couldn't care about anything else.
His gaze quickly swept around,
Instantly locking onto the location of Luo Fu in the Limited Tsukuyomi world.
The moment he saw himself in the Limited Tsukuyomi world, Luo Fu's eyes lit up.
Found it.
As expected, the Limited Tsukuyomi world was the real ninja world, a mirrored world to protect itself and find a way to eliminate the influence of chakra.
In this world, that Luo Fu with a completely opposite personality to his had actually mastered a power that was incompatible with the ninja world's chakra system.
Theoretically, Luo Fu awakened his past life memories on the battlefield of the Third Shinobi World War, and it was not long after that he entered the Shared Space.
But the Limited Tsukuyomi itself was the process of the world's instinctive resistance to the God Tree's chakra system.
Naturally, it wouldn't truly correspond to the real world in a logically seamless way.
More importantly, perhaps because the Luo Fu of this world carried the power of the native world,
He had initially evaded Luo Fu's search.
But now that he had locked onto the target, Luo Fu would certainly not waste time on the members of the Hidden Leaf Village in this Limited Tsukuyomi world.
With a flash of his figure, Luo Fu disappeared from the Hokage Rock out of thin air.
Having lost Luo Fu's power, the Hidden Leaf Village's high-level members, who had originally been restrained in place and unable to move,
Suddenly staggered and regained their freedom.
"What… what a terrifying ability. I couldn't even move a finger," Tsunade said, drenched in cold sweat, looking like she was still in shock.
"Not good," Hiruzen Sarutobi suddenly exclaimed, his figure suddenly rushing towards the village.
The others also seemed to have realized something and hurriedly followed.
After Luo Fu's figure disappeared from the Hokage Rock, he appeared within the Uchiha clan's compound in an instant.
And in front of him was indeed a much younger version of himself.
"You…"
Startled by the sudden appearance of Luo Fu, before Luo Fu of the Limited Tsukuyomi world could speak,
Luo Fu, who had been searching for so long, directly chose to attack himself in this Limited Tsukuyomi world.
With a grab of his five fingers, the Limited Tsukuyomi Luo Fu instantly fell into his hands.
In the blink of an eye, all the secrets of the Limited Tsukuyomi Luo Fu began to be analyzed by Luo Fu.
From chakra to that unfamiliar power, and even the seemingly Uchiha clan bloodline, which was actually just a superficial ability, were all clearly seen by Luo Fu.
This was a special power system that clearly borrowed a lot from chakra.
Moreover, it was extremely close to the Innate Qi of the Outcast world.
The only difference was that the Innate Qi of the Outcast world could not actually be cultivated and improved, but could only be applied and manipulated.
Innate Qi was the source of life. Once Innate Qi was lost, life would come to an end.
The Limited Tsukuyomi world clearly mirrored Luo Fu's own ability, which was similar to but not the same as chakra, and ultimately formed the incongruous energy at this moment.
This energy, in essence, was still a presentation of the native power of the ninja world.
But it flowed within the body of the Limited Tsukuyomi Luo Fu in a way that was close to chakra but different from chakra.
This power, which symbolized the essence of life, might not be as mysterious as chakra in the short term, but the upper limit of this power was undoubtedly much stronger than chakra.
Not to mention, cultivating chakra would only lead to the path of sacrificing one's own life, sacrificing 80% of the chakra they had painstakingly extracted to the true owner of chakra, the Sage of Six Paths, Kaguya Otsutsuki.
But this energy, which was close to Innate Qi and seemed to be combined with chakra, would become stronger and stronger over time.
Perhaps it would still not achieve immortality, but in terms of lifespan, it would far surpass ninjas. Even if the body aged and the years increased, the state would not decline so severely.
It could be said that this system had to a certain extent possessed and satisfied Luo Fu's vision for the Inner Alchemy Technique.
However, this system was only the effect presented after the combination of native power and chakra, plus the ability of the mirrored Luo Fu himself.
At this stage, it was at most a product of a hodgepodge, and it had not yet truly merged to produce a unique effect.
Just as Luo Fu gradually analyzed what the ability possessed by himself in this world was all about,
The high-level members of the Hidden Leaf Village had finally rushed over all the way.
Seeing that Luo Fu was doing something to the Uchiha clan's young man,
Hiruzen Sarutobi's eyes were tearing apart, and the Adamantine Staff in his hand pointed remotely in Luo Fu's direction.
The Adamantine Staff instantly swelled, and in the blink of an eye, it came towards Luo Fu.
It should be known that Enma's Adamantine Imprisonment was able to clash head-on with the Sword of Kusanagi. Even if it was injured, it could not withstand a light touch of the Sword of Kusanagi.
Only Enma, the Adamantine Imprisonment, was truly the most solid force in the ninja world.
However, Hiruzen Sarutobi's monkey might be able to exert a good effect when dealing with ordinary Kage-level ninjas.
But using it against Luo Fu was obviously a laughing stock.
Faced with the Adamantine Staff that was coming violently, Luo Fu didn't even move.
He still maintained the posture of peering into the Limited Tsukuyomi Luo Fu. Watching the Adamantine Staff rush to his side.
A wave-like spatial ripple instantly rippled around Luo Fu.
In just an instant, the Adamantine Staff plunged into the space.
The next moment, it drilled out from behind Hiruzen Sarutobi.
The huge force caused the unprepared Hiruzen Sarutobi to take a solid blow. With the sound of bones breaking, Hiruzen Sarutobi's entire spine seemed to be completely broken by the Adamantine Staff, blood spurted out of his mouth instantly, and his whole person seemed to be folded in the back.
"Teacher," Tsunade exclaimed, hurriedly stepped forward, and began to treat Hiruzen Sarutobi.
Unfortunately, Tsunade's medical ninjutsu was indeed surprisingly powerful. If it were herself, she could even be cut in half and be able to consume a huge amount of chakra to recover.
But that was because Tsunade herself had the Strength of a Hundred Seal. If it were someone else, they would not be able to show this terrifying recovery power at all.
In a short while, Tsunade, who was treating Hiruzen Sarutobi, despairingly discovered that Hiruzen Sarutobi had stopped breathing.
"Bastard," Ignoring the blood on her hands,
Tsunade roared angrily, directly using her Super Strength and attacked Luo Fu violently.
Hiruzen Sarutobi's death made the high-level members of the Hidden Leaf in the Limited Tsukuyomi world instantly become united against the enemy.
Relying on anger, even if they faced Madara Uchiha, they might be able to fight back and forth.
But now they were facing Luo Fu.
Before the people from Konoha could rush over, a powerful gravitational force erupted instantly, pressing the Sannin, Danzo Shimura, and others firmly onto the ground less than a few meters away from Luo Fu, in an incredibly humiliating posture, prostrating themselves as if in complete submission.
As Luo Fu suppressed the upper echelons of Konoha, the entire world of the Limited Tsukuyomi seemed to be stimulated, and the entire world suddenly trembled violently.
Immediately afterward, dense cracks began to appear in the surrounding space.
The cracks expanded in an instant, followed by a cracking sound, and the Limited Tsukuyomi completely collapsed.
Moreover, the Luo Fu within the Limited Tsukuyomi in Luo Fu's hand instantly vanished into nothingness.
Luo Fu lamented inwardly, realizing he hadn't even had time to figure out the power system of the native world before the world collapsed due to excessive stimulation of the Limited Tsukuyomi.
Although everything in the Limited Tsukuyomi was lifelike and realistic, its essence was merely a kind of illusion, a mirror image of the world.
When the development within the Limited Tsukuyomi world was severely disrupted, the world would collapse in an instant.
Strangely, after the world of the Limited Tsukuyomi collapsed, Luo Fu did not return to the real world.
Instead, he found himself in a kaleidoscopic world of bizarre and colorful transformations, appearing once again in a new Konoha village.
This time, Luo Fu didn't waste any time but went straight to the Uchiha clan's compound.
Sure enough, when he found himself in this world again, Luo Fu recognized at a glance that this version of himself also possessed a special energy fluctuation, different from chakra, and even closer to the innate Qi.
Without alarming anyone, Luo Fu directly began to study this special energy system containing the power of the native world.
No matter how realistic the world of the Limited Tsukuyomi was, in the final analysis, the Limited Tsukuyomi was just a mirror image of the real world, a domain like an illusion.
It was impossible to develop it infinitely.
When the Limited Tsukuyomi developed to a certain extent, it would collapse instantly and be reborn.
After countless reincarnations, Luo Fu finally managed to figure out the outline and general idea of the native power system of the ninja world before the descent of the Otsutsuki clan, through numerous efforts in several reincarnations.
Before the Otsutsuki clan descended, there was also a transcendent system in the ninja world.
However, compared to chakra, the transcendent system of the ninja world was far inferior in terms of destructive power.
Instead, the effects displayed by the native transcendent system of the ninja world were closer to those of the Hetero-humans who cultivated innate Qi, and the destructive power was also similar.
This was also why ordinary people occupied the absolute mainstream in the ninja world before the Otsutsuki clan descended.
Compared to the native system, which was still in its nascent state, the mature chakra system, along with the Divine Tree planted on this planet, was destroyed at an overwhelming speed.
Now, even if Luo Fu went to great lengths, he could only glimpse a bit of the mystery of the native power through the Limited Tsukuyomi, a space like a mirror image or illusion.
Although the native system of the ninja world was indeed somewhat similar to the Hetero-human world, unlike the Hetero-humans who could only fight with their own innate Qi, the development of the native system of the ninja world was developing in a way that resonated with natural energy.
Natural energy was the planet's life force that had not yet been swallowed and transformed by the Divine Tree.
The reason why ninjas who cultivated chakra were at risk of petrification when cultivating Sage Mode was entirely because the native power of the ninja world resisted and antagonized chakra; the two were clearly in a state of incompatibility, like fire and water.
Of course, if one relied on powerful Xing Gong, that is, spiritual power, to forcibly complete the matching, although it was indeed possible to enter Sage Mode, there were strict time restrictions.
However, the native power system of the ninja world did not have this drawback.
Under the guidance of natural energy, its lethality had even reached a level comparable to chakra.
What Luo Fu wanted to do was not to really restore the ninja world's own system.
After all, compared to chakra, the ninja world's native power system could only be regarded as just starting.
Luo Fu needed to use the wisdom of the ninja world's native power, combined with chakra and the many abilities he shared, to create a method powerful enough to stand shoulder to shoulder with chakra, or even reach and surpass the Otsutsuki clan's power and system.
The native power system was the root, the abilities shared by Luo Fu were the branches, and chakra was the trunk, but if he wanted this sneak attack to flourish and spread completely, he would need countless ninja world creatures to constantly add bricks and tiles to this system, just like adding leaf after leaf to this system, ultimately allowing this big tree to blossom and bear fruit.
After completing his purpose, Luo Fu did not hesitate to completely destroy the world of the Limited Tsukuyomi.
This was not Luo Fu smashing the pot after finishing his meal; the Limited Tsukuyomi itself was a product of the world's stress response after being invaded by the Otsutsuki clan and the chakra Divine Tree.
Even if the system Luo Fu wanted to create was based on the ninja world's native foundation, for the ninja world, his approach was also an invasion of the world.
At most, the Otsutsuki clan's chakra Divine Tree wanted to completely kill the world's native system with one knife, while Luo Fu was cutting flesh with a blunt knife.
There was no essential difference between the two.
As long as the world of the Limited Tsukuyomi still existed, the power system created by Luo Fu would sooner or later be rejected by the world, at most not as hostile as it was to chakra.
However, what Luo Fu wanted was to make the Neidan method he created become the mainstream in the true sense of this world.
Then, he would naturally not keep these mirror-like Limited Tsukuyomi worlds.
As the world of the Limited Tsukuyomi was destroyed, Luo Fu vaguely seemed to hear the wailing of the world.
At the same time, he also felt as if he was burdened with some kind of destiny.
At the same time.
When Luo Fu destroyed the Limited Tsukuyomi, Naruto Uzumaki, who had once again obtained the cheat from the Sage of Six Paths, suddenly shuddered, and a sense of loss arose in his heart.
It was as if something extremely important to him had been lost.
In fact, neither Luo Fu nor Naruto Uzumaki were clear about this.
The main reason why Naruto Uzumaki became the protagonist of this era and even completed the mission of saving the world was that he was the target chosen by the Sage of Six Paths and the world itself.
Although the world itself was hostile to the chakra system.
However, when a catastrophe was approaching, the world would instinctively choose to save itself as a stress response.
It was just like, if there was no Luo Fu, with the unsealing of Kaguya Otsutsuki and the revival of the Ten-Tails Divine Tree, rooted on the planet once again.
For the world, this was undoubtedly the prelude to the coming of a catastrophe.
The world could not resist, so it could only choose Naruto Uzumaki, the reincarnation of the Sage of Six Paths' son, as its agent to solve the biggest threat first.
Compared to the urgent matter of Kaguya Otsutsuki's revival and the Ten-Tails Divine Tree re-rooting on the planet, Naruto Uzumaki, the reincarnation of the Sage of Six Paths' son, was no longer so important.
Luo Fu and Naruto Uzumaki, who were being used from beginning to end, were not clear about this, but the Sage of Six Paths was not necessarily so.
Perhaps, all of this was deliberately caused by the Sage of Six Paths.
It should be known that although the Sage of Six Paths feigned death and escaped, he was constantly paying attention to every move in the ninja world in the Pure Land.
It was impossible for the Sage of Six Paths not to be aware of Black Zetsu's existence.
Even if Black Zetsu hid perfectly, after thousands of years, he would eventually reveal clues.
With the Sage of Six Paths' strength, since he had a full possibility of discovering Black Zetsu, but he insisted on allowing Black Zetsu to revive Kaguya Otsutsuki, the only explanation was that the Sage of Six Paths was plotting something big.
Combining the world's own reaction, the result was self-evident; what the Sage of Six Paths was plotting was the ninja world itself.
Don't think that the Sage of Six Paths was Kaguya Otsutsuki's child born in the ninja world, and truly believe that the Sage of Six Paths knew nothing about the Otsutsuki clan.
Don't forget that Naruto Uzumaki was able to contend with a genuine member of the Otsutsuki clan, so how could the Sage of Six Paths really know nothing about the Otsutsuki clan?
The ninja world was what the Sage of Six Paths was most worried about.
Who made the ninja world the most special place in the entire universe?
In the universe, there were indeed many planets that could allow the chakra Divine Tree to bear fruit, but there were few planets that could give birth to fruit, and even terrifyingly strong fruit, like the ninja world, without draining the entire planet's life force. These planets, if not unique, were also few and far between.