How did the God Tree of the Naruto world come into existence?
Yagyu didn't know, but he did know how the chakra fruit was created.
The Ōtsutsuki clan of the outer world, with their immense power, could traverse the universe with their physical bodies. They would explore planets with abundant life force, gather information, and bring it back to their main family.
Afterward, the higher-ups of the Ōtsutsuki clan would send two members—one primary and one secondary—of pure Ōtsutsuki blood to the planet with a seedling of the God Tree to plant it.
Yes, the God Tree doesn't grow from a seed but from a seedling.
And after the seedling grows, it doesn't immediately become the God Tree. Instead, it first transforms into the juvenile form of the Ten-Tails.
At this point, the secondary Ōtsutsuki member must become a living sacrifice, offering themselves to feed the juvenile Ten-Tails.
Only after consuming the living sacrifice does the juvenile Ten-Tails transform into the God Tree. It then absorbs the planet's energy and slowly bears the chakra fruit.
Except for certain special individuals or creatures, no one or thing would willingly sacrifice themselves for the sake of others.
Except for the members of the Ōtsutsuki clan.
This is because the clan possesses a unique ability known as the Karma.
Karma can replicate oneself and digitize the data, which is then implanted into another person's body, leaving a black diamond-shaped mark similar to a curse seal.
This mark is like a compressed file from Yagyu's previous life. It slowly decompresses within the implanted person's body, gradually replacing their data, allowing the Ōtsutsuki to revive in this vessel.
At the same time, Karma grants the vessel immense power. The more the vessel uses this power in battle, the faster the decompression process, accelerating the Ōtsutsuki's revival.
The Ōtsutsuki clan refers to this phenomenon as "thawing."
In the original story, the Ōtsutsuki who came to Earth weren't just Kaguya Ōtsutsuki but also Isshiki Ōtsutsuki.
Moreover, in the duo, Kaguya was supposed to be the secondary member—the living sacrifice to feed the juvenile Ten-Tails.
But Kaguya didn't want to become a sacrifice, so she took the opportunity to ambush Isshiki, forcing him to become the living sacrifice for the juvenile Ten-Tails.
After the Ten-Tails transformed into the God Tree and bore the chakra fruit, Kaguya didn't return to the main family with the fruit. Instead, she consumed it herself, becoming the progenitor of chakra on Earth.
This act was undoubtedly a betrayal of the Ōtsutsuki clan.
The God Tree takes at most a thousand years to bear fruit, and that time has long since passed.
Regardless of the outcome, the Ōtsutsuki clan would send someone to investigate.
This led to the events of Boruto.
However, now, Boruto clearly won't happen.
Even if it does, it certainly won't be called Boruto. The new generation of the future will all be Yagyu's descendants.
Of course, these weren't the reasons Yagyu was lost in thought.
Yagyu stared at the Demonic Statue of the Outer Path with a bold idea.
Could the Demonic Statue of the Outer Path transform back into the Ten-Tails, then into the God Tree, and ultimately bear a new chakra fruit?
In the original story, after Obito Uchiha became the Ten-Tails Jinchūriki, he spat out a God Tree, which was then absorbed by Madara Uchiha.
Since the Ten-Tails could transform into the God Tree and revert back to the Ten-Tails, eventually being stripped of its chakra to become the Demonic Statue of the Outer Path, it might be possible to reverse the process.
However, this would likely require feeding it a pure-blooded Ōtsutsuki and waiting for a long time.
Moreover, Yagyu remembered that Isshiki Ōtsutsuki, who was hiding somewhere, still had a juvenile Ten-Tails in his possession.
As the primary overseer, he didn't need to consume the chakra fruit to possess divine techniques and immense power.
If he hadn't been caught off guard by his own people, he wouldn't have been ambushed by Kaguya.
Even after being ambushed, he didn't truly die but made a comeback in the future, though he ultimately died at the hands of a teenager.
His body not only held the method of planting the God Tree but likely also the Ōtsutsuki clan's alchemical techniques.
He was the greatest treasure.
If Yagyu could obtain all of his memories, there might be a way to revive the Demonic Statue of the Outer Path.
With this in mind, Yagyu immediately made a decision.
With a glare, space twisted, and the Demonic Statue of the Outer Path was sucked into the Kamui dimension.
At the same time, the colored light spheres on the ground triggered the auto-collection mechanism, transforming into beams of light that flew into Yagyu's body.
Yagyu summoned his spatial backpack to check the information of these colored light spheres.
[Spatial Backpack: Kekkei Mōra - Rinne-Sharingan (Colored)]
[Spatial Backpack: Kekkei Mōra - Yomotsu Hirasaka (Colored)]
[Spatial Backpack: Kekkei Mōra - Ash Killing Bones (Colored)]
[Spatial Backpack: Kekkei Mōra - Nature Integration (Colored)]
[Spatial Backpack: Kekkei Mōra - Expansive Truth-Seeking Orb (Colored)]
"Hiss…"
Looking at the information of these colored light spheres, Yagyu couldn't help but inhale sharply. He hadn't expected to be this lucky.
"Even the Rinne-Sharingan can drop? The game system's dimension truly surpasses the Ōtsutsuki clan," Yagyu muttered with a face full of joy.
He had obtained five colored light spheres in total.
The one with the most colors was the seven-colored Rinne-Sharingan, followed by the five-colored Expansive Truth-Seeking Orb.
The remaining three-colored spheres were abilities like the Ash Killing Bones.
If Yagyu had only obtained abilities like the Ash Killing Bones, he would have merely felt pleased.
Even if he had obtained the Expansive Truth-Seeking Orb, he would only have been happy for a while.
After all, he had already absorbed all the chakra of the Ten-Tails. Once he developed Yin-Yang Release to a certain level, with his chakra reserves, he would eventually be able to use the Expansive Truth-Seeking Orb.
Even abilities like the Ash Killing Bones, Yagyu was confident he could develop them one day.
After all, he had all the foundational abilities required for these Kekkei Mōra.
The only exception was the Rinne-Sharingan, the final form of the Sharingan, which could only be awakened by consuming the chakra fruit or becoming the Ten-Tails Jinchūriki.
Even Hagoromo Ōtsutsuki, after separating the Ten-Tails from his body, no longer possessed the Rinne-Sharingan.
Even Obito Uchiha and Madara Uchiha could only use the Infinite Tsukuyomi with their Rinne-Sharingan.
Only Kaguya Ōtsutsuki, who had consumed the chakra fruit and whose will resided within the Ten-Tails Jinchūriki, could use the Amenominaka within the Rinne-Sharingan.
Although Yagyu had absorbed all the chakra of the Ten-Tails, it had been purified by Outer Path Maru. There was no trace of the wills of the Nine Tails, the Ten-Tails, Madara Uchiha, or Kaguya Ōtsutsuki within it.
This chakra had become Yagyu's own.
Thus, Yagyu didn't possess the Rinne-Sharingan.
But now, he had a way to obtain it.
How could Yagyu not be excited?
After all, the Rinne-Sharingan housed two Kekkei Mōra-level ocular techniques: the Infinite Tsukuyomi and the Amenominaka.
Not to mention the alternate dimensions within the Amenominaka, just the Infinite Tsukuyomi alone would allow Yagyu to instantly subdue the entire shinobi world and elevate his Wood Release to the level of the Divine: Deep Forest Emergence.
After all, his chakra reserves were already at the level of a Ten-Tails Jinchūriki.
Moreover, if Yagyu wished, he could reclaim all the chakra of the shinobi world, elevating his power to unprecedented heights.
At that point, Yagyu would be the only transcendent being in the shinobi world, just like Kaguya Ōtsutsuki in the past.
But Yagyu didn't plan to do this.
After all, many individuals in the future could develop chakra into various high-tech creations.
Orochimaru even created clones and artificial humans.
With these geniuses around, the shinobi world would continue to develop, not only improving daily life but also helping Yagyu lure out Isshiki Ōtsutsuki or divert the attention of the outer-world Ōtsutsuki clan.
The chakra reserves of a Ten-Tails Jinchūriki were more than enough.
Once Yagyu stabilized his power and developed Yin-Yang Release to the point where he could freely manipulate mental energy, he was confident he could deal with Isshiki Ōtsutsuki and the outer-world Ōtsutsuki clan.
Thus, Yagyu fused the five colored light spheres.
In an instant, five beams of light flew out of the spatial backpack and merged into Yagyu's body.
The Yin-Yang and Five Elements chakra natures rapidly fused, giving rise to a variety of new powers.
At the same time, Yagyu's brain began secreting special Yin Release chakra.
Before long, Yagyu's body gained several powerful abilities.
These included the Kekkei Mōra - Ash Killing Bones, which had an instant-death property. No matter how strong the target's physique, if pierced, they would instantly petrify, shatter, and turn to ash.
There was also the upgraded version of the Floating Technique, Kekkei Mōra - Nature Integration, which not only allowed Yagyu to merge with the earth and vegetation but also manipulate everything on the ground to attack others.
Additionally, there was the Kekkei Mōra - Yomotsu Hirasaka, which was more advanced than Kamui. It didn't require glaring or charging; Yagyu only needed to release chakra to tear open a black portal and move at high speeds through alternate dimensions.
Moreover, having absorbed the Ten-Tails' chakra, Yagyu now had enough energy to use the Expansive Truth-Seeking Orb, which could devour all Yin-Yang and Five Elements properties, returning the world to nothingness.
Any one of these abilities could allow a weakling to defy fate and become a bug-like existence like Obito Uchiha.
And now, all these abilities were concentrated in one person. It was clear just how much their power and danger had skyrocketed.
But this wasn't the greatest treasure.
After Yagyu's brain finished secreting the special Yin Release chakra, his eyes, which were as clear as rubies, began to shimmer with various patterns.
The Sharingan, with its three black tomoe spinning within a crimson background.
The Mangekyō Sharingan, with its black lotus pupil.
The Rinnegan, with its purple sclera and black concentric circles.
And finally… the sclera turned red, the black concentric circles remained, but now surrounded by nine black tomoe.
This was the final form of the Sharingan… the Rinne-Sharingan.
"It's a dual-eye form? And…"
Yagyu, as if discovering something, was filled with astonishment and muttered, "My Sharingan and Rinnegan have disappeared."
Yes, Yagyu's Sharingan and Rinnegan had disappeared, replaced by only three ocular techniques: the Red Eye, the Byakugan, and the Rinne-Sharingan.
The abilities of his Sharingan and Rinnegan had been assimilated into the Rinne-Sharingan.
Yagyu had thought that fusing with the Rinne-Sharingan colored light sphere would result in a third eye opening on his forehead, like Kaguya Ōtsutsuki and Madara Uchiha.
But instead, both of his eyes had transformed into Rinne-Sharingan, and they couldn't revert to the purple Rinnegan, Mangekyō Sharingan, or three-tomoe Sharingan forms.
Fortunately, the abilities of the Sharingan, Mangekyō Sharingan, and Rinnegan had all transferred to the Rinne-Sharingan, and Yagyu could freely use these abilities without switching.
"Is it because the Rinne-Sharingan is the final form of the Sharingan?" Yagyu speculated.
If it were like Sasuke Uchiha's single six-tomoe Rinnegan, which couldn't revert to its normal state unless its ocular power was depleted, Yagyu would have been unwilling.
Even if the six-tomoe Rinnegan could simultaneously use Sharingan and Rinnegan abilities, Yagyu felt such eyes were imperfect.
Compared to those eyes, Yagyu would rather have the Rinnegan, which required degradation to use Sharingan abilities.
But now, Yagyu didn't need to worry.
His Sharingan had reached its final form. By activating the Rinne-Sharingan, he could freely use abilities ranging from the one-tomoe Sharingan's insight to the Kekkei Mōra-level Heavenly Dimensions and Infinite Tsukuyomi.
Even the transplanted Kotoamatsukami was no exception.
Moreover, the Rinne-Sharingan could be activated and deactivated at will.
Without a doubt, these were the perfect eyes.
After activating the Rinne-Sharingan, Yagyu could feel the Infinite Tsukuyomi and Amenominaka housed within his two eyes.
The ownership of the six alternate dimensions that originally belonged to Kaguya Ōtsutsuki had also transferred to Yagyu.
With a flash of red light in his eyes, Yagyu's surroundings returned to the night sky.
Below was the desolate earth, and above was the silver-white full moon and the starry sky.
"Yagyu!!"
As soon as Yagyu returned to the real world from the alternate dimension, two voices called out to him.
Following the direction of the voices, Yagyu saw Naruto and Sasuke Uchiha rushing toward him.
"Naruto, Sasuke, what's going on with you two?"
Looking at Naruto and Sasuke, who had undergone significant changes and clearly received power-ups from Hagoromo Ōtsutsuki, Yagyu feigned surprise.
"We just received help from an old man. He seemed to be the Sage of Six Paths."
After answering, Naruto quickly scanned the surroundings and asked, "Where's Madara Uchiha?"
"He's dead," Yagyu said with a smile. "The war is over. We've won."
"What?!"
Hearing this, Naruto and Sasuke, who had returned with the mission to save the world, both widened their eyes in shock.