With Orochimaru's involvement, Kōki's experiments on the Six Paths technique were greatly advanced.
Over the course of seven years, in collaboration with Orochimaru, they improved the Bloodline Evolution Potion to the point that it could perfectly awaken the Kekkei Genkai in an ordinary person who originally had no Kekkei Genkai. Moreover, the power of the Kekkei Genkai was no less than that of a born Kekkei Genkai. Furthermore, the Kekkei Genkai Evolution Potion provided an even greater boost to ninjas who already possessed Kekkei Genkai. However, even so, they still failed to achieve what Kōki had hoped for: reaching the Six Paths Level with the Kekkei Genkai Potion.
After realizing that he could not achieve his goal with the Kekkei Genkai Potion, Kōki continued to study Yin-Yang Release diligently, hoping to gain inspiration from Yin-Yang Release.
During the years that Kōki collaborated with Orochimaru on research...
The Shinobi World was in turmoil. After being defeated by the Light Organization, Nagato officially began his plan to capture the Tailed Beast. In order to save time, he recruited powerful figures from the original story, such as Sasori, Hidan, Deidara, and Kisame, to help him.
With so many powerful individuals working together, they successfully captured the One-Tail, Two-Tails, Three-Tails, Four-Tails -Tailed, Five-Tails, Six-Tails, and Seven-Tails creatures into the Demonic Statue of the Outer Path. However, the capture of the Eight-Tails creature caused too much of a commotion, and it was eventually discovered by the Kumogakure. After a fierce battle, half of the Kumogakure was destroyed, but the Eight-Tails was still saved.
It was this battle that made the entire Shinobi World realize that there was a dangerous organization in the Shinobi World that had collected all eight Tailed Beast except for the Nine-Tails. Faced with the threat of the Akatsuki, the major ninja villages in the Shinobi World had no choice but to convene the Five Kage Summit. At the Five Kage Summit, the five ninja villages united to form the Allied Shinobi Forces to defeat the Akatsuki, and the Hokage Minato Namikaze, who still possessed the last Tailed Beast, became the captain of the Allied Shinobi Forces.
After the Akatsuki was exposed, they also put up a fight. For example, Obito, who was an undercover Obito, once tried to assassinate Nagato in order to end the war, but he failed and was defeated by Nagato's Rinnegan.
After the defeat, Obito revealed the truth about the Akatsuki and the Rinnegan, as well as Madara's conspiracy, hoping to change Nagato's mind. However, to his surprise, Nagato remained unmoved, making him realize that something was definitely wrong with Nagato. Unfortunately, he didn't have time to investigate.
Just as Obito was about to be executed by Nagato, Nagato's childhood friends Yahiko and Konan appeared and rescued Obito. They then told Obito about Nagato's changes. It turned out that Nagato had talked with Jiraiya for a while when he was collecting the Tailed Beast.
Afterwards, they prepared to abandon the mission of collecting the Tailed Beast, but no one expected that Zetsu, who had been keeping a low profile, would suddenly attack Nagato and take control of Nagato's body and Rinnegan. This greatly surprised Obito, because in Obito's view, Zetsu had no special abilities other than intelligence gathering and Madara's will.
It was only later that we learned that Obito's repeated returns to Konoha had attracted Black Zetsu's attention. Then, in an unexpected situation, Black Zetsu discovered that Rin Nohara was not dead, which made Black Zetsu immediately suspect Obito's identity. After monitoring him multiple times, he discovered that Obito had indeed betrayed him.
Then Nagato threatened to terminate the plan, which finally made Black Zetsu, who had been waiting for thousands of years, unable to hold back any longer. He began to carry out the plan himself, which led to the events that followed.
Because of Obito, Yahiko 'Konan escape, Black Zetsu realized that Madara's plan could no longer be hidden. Therefore, he stopped concealing it and began to act openly. He first activated the 100,000-strong White Zetsu army that had been on standby, and then, fearing the Light Organization which had remained inactive, he used the Impure World Reincarnation Jutsu to summon renowned powerful figures from the Shinobi World. On one hand, he was resisting the high-end combat power of the Allied Shinobi Forces, and on the other hand, he was guarding against the possible appearance of the Light Organization.
Thus, under Black Zetsu's control, Nagato, together with the powerful Impure World Reincarnation, clashed with the Allied Shinobi Forces. However, thanks to the presence of Kōki, who was comparable to God of the Shinobi World, the situation improved despite the extremely difficult battle.
With Kōki's help, the Allied Shinobi Forces sealed away many powerful individuals Impure World Reincarnation through the Impure World Reincarnation technique. Seeing the situation turning against them, Black Zetsu finally revealed his trump card: Edo Madara. And once Edo Madara appeared, it had an immediate effect, directly halting the Allied Shinobi Forces ' attack.
As a key member of the Allied Shinobi Forces, Kōki immediately engaged Madara Uchiha in battle upon his appearance. Shockingly, however, Kōki was killed by Madara after only a few exchanges. It was soon discovered, however, that the deceased Kōki was merely Wood Release Clone, and the real Kōki was still conducting the final stage of his Six Paths experiments at the Rōran base.
Without Kōki as a powerful ally, the Allied Shinobi Forces ' situation instantly turned against them. Fortunately, they still had strong shinobi Minato Namikaze Jiraiya, Tsunade, Ōnoki, and A, which allowed them to barely maintain their undefeated record. However, the Five Kage knew that without reinforcements, they would truly lose this war that determined the fate of the Shinobi World.
At this moment, Obito, who had recovered from his injuries, appeared and suggested searching for Kōki and the Light Organization. He then revealed that the Light Organization had once defeated Madara. This news undoubtedly gave the Allied Shinobi Forces a shot in the arm, and they immediately dispatched people to search for any trace of the Light Organization.
However, the Light Organization was too well hidden, and the Allied Forces found no clues at all. Just when the Allied Shinobi Forces were getting anxious, Sara, the then Queen of Roran, informed them that the Light Organization was hiding in Rōran. After receiving the intelligence, the Allied Forces immediately rushed to Rōran.
Meanwhile, Madara Uchiha also learned that the Allied Forces were searching for the Light Organization. At first, Madara didn't care at all. Although he had been defeated by the Light Organization before, it was when he was old and frail, so it didn't count. However, after hearing from Black Zetsu that the members of the Light Organization had obtained the Rinnegan just like him, he immediately began to take the Light Organization seriously.
Then, he ordered Black Zetsu to control Nagato and revive him using the Rinne Rebirth of the Rinnegan. After being revived, Madara regained his eyes. Because he did not know the exact strength of the Light Organization, Madara cautiously decided to absorb the Ten-Tails, which he had obtained from the eight Tailed Beast. After absorbing the Ten-Tails, Madara Uchiha's strength indeed increased greatly. Reaching the Six Paths Level with the Ten-Tails, he easily killed many ninjas.
To resist the rampaging Madara, two Taijutsu ninjas with green glows emerged from the Allied Shinobi Forces: Might Duy and Might Guy. This father and son, with astonishing willpower, opened the final gate of the forbidden Eight Gates Released Formation — the Gate of Death. They demonstrated to all the ninjas of the Shinobi World the true Will of Fire.
The father and son, their bodies radiating crimson Chakra, combined to inflict the most powerful damage on Madara Uchiha since his resurrection. Unfortunately, while their Taijutsu was formidable, and they did indeed leave Madara half-dead, even prompting the proud Madara to declare them the strongest in Taijutsu, such damage was not unbearable for Madara after he became the Six Paths.
Amidst the despairing gazes of the Allied Shinobi Forces, Madara, relying on the characteristics of the Six Paths, regained his strongest fighting power, a scene that filled the Allied Shinobi Forces with utter despair.
Meanwhile, led by Sara, the allied forces finally arrived at the Light Organization's base. Upon entering, they saw Orochimaru and Kōki, who had been missing for a long time. After Orochimaru's introduction, they realized that the entire Light Organization Light Organization actually Kōki alone. However, they were not too surprised and directly explained the situation on the battlefield to Kōki, hoping that Kōki could go to the battlefield to provide support immediately.
But Kōki refused, because he knew that before he had achieved the Six Paths, he was no match for Madara, who had already reached the Six Paths Madara. On the other hand, his path to the Six Paths had reached its final step, and it was this final step that prevented him from leaving. During the Fourth Shinobi World War, by combining the Chakra nature of his clones with his own control over Yang Release, he successfully unified the seven Chakra natures, obtaining a Chakra Seed similar to Chakra Fruit. After obtaining this seed, Kōki did indeed achieve the change he desired: his body developed Six Paths Level characteristics, such as Truth-Seeking Orb.
However, Kōki realized that although he had reached the Six Paths realm, he did not possess the corresponding Six Paths Level power. He later realized that a seed is ultimately just a seed; to grow and bear fruit, it requires a massive Natural Energy to nurture it. Just like Kaguya's attempt to reclaim the Chakra of the Shinobi World, only when quantity and quality match can one truly reach the Six Paths Level.
Fortunately, the reason Rōran was chosen as the base was because Rōran possessed a vast energy source – the Dragon Vein. With the support of the Dragon Vein Chakra, which is said to have unlimited energy, he believed it would help him accumulate the necessary resources.
Therefore, in order to truly possess the power of the Six Paths, Kōki has been diligently absorbing the Chakra of the Dragon Vein for some time now.
After hearing Kōki's explanation, the Allied Shinobi Forces that had come to ask for help were at a loss, because they also knew that only if Kōki took that step could they possibly rival Madara, so they waited for Kōki's final leap.
As Kōki made his final leap, on the main battlefield, the Kage of the Allied Shinobi Forces suffered a crushing defeat and were powerless to resist. However, because Madara's ideal was to realize the Infinite Tsukuyomi, he did not exterminate them but ignored the Allied Shinobi Forces and officially launched the Infinite Tsukuyomi Jutsu.
As the Infinite Tsukuyomi Jutsu unfolded, all the ninjas bathed in its light were plunged into a deep, blissful dream. It could be said that Madara Uchiha's plan had truly succeeded. But just as Madara thought he had achieved his long-cherished wish of surpassing Hashirama Senju, the true mastermind appeared. Black Zetsu, who had been standing behind Madara, delivered a devastating blow, severely injuring him. Then, he immediately began releasing Kaguya Otsutsuki Kaguya, the progenitor of Chakra imprisoned by Hagoromo Otsutsuki.
Faced with the unwilling Madara, Black Zetsu revealed that his true identity was actually Kaguya's consciousness, and Madara was merely a pawn in his game.
He even modified the Six Paths Stone Tablet within the Uchiha Clan, aiming to guide Madara onto the path he had planned. The only thing that surprised him was the appearance of the Light Organization, but fortunately, even in the end, the Light Organization did not appear, allowing him to successfully rescue Kaguya.
Just as Black Zetsu was feeling smug, a previously unseen Light Organization appeared, or rather, the leader of that Light Organization appeared.
This person who arrived late was none other than Kōki, who had already successfully completed his final leap.
At this moment, Kōki appeared before Black Zetsu wearing the Six Paths Robe. He had the Rinnegan in his eyes, held the Six Paths Staff, and had nine Truth-Seeking Orb floating behind him, making him very similar to Hagoromo Otsutsuki in appearance.
This appearance immediately brought tears to Otsutsuki Kaguya's eyes as she reappeared in the human world, seeing the image of her child in Kōki. But then, she was filled with rage, because she also remembered the fact that she had been sealed away by her beloved child.
Thus, Otsutsuki Kaguya fought Kōki, but compared to a battle-hardened ninja like Kōki, Otsutsuki Kaguya lacked combat experience and relied entirely on the destructive power of the Six Paths to defeat her.
Therefore, it didn't take much effort for Kōki to successfully defeat Otsutsuki Kaguya. Just as Kōki was thinking about how to completely eliminate Otsutsuki Kaguya, the Sage of Six Paths, Hagoromo Otsutsuki, appeared. The moment Kōki saw Hagoromo Otsutsuki, his heart was filled with hostility, because he had always suspected that Hagoromo Otsutsuki was the manipulator of everything in the Shinobi World.
However, what Hagoromo Otsutsuki said next overturned his guess. Hagoromo Otsutsuki revealed that he had been watching Kōki and observing Kōki actions, and also said that he had played a part in Kōki's successful resurrection after the human experimentation.
Afterwards, Hagoromo Otsutsuki stated that Kōki had now become a sage like himself, and there was no longer any threat to the world. He hoped that Kōki would release Kaguya and reseal Kaguya. In exchange, he would revive those involved in this war, cease interfering in the Shinobi World, and no longer arrange for Asura and Indra to be reincarnated.
These conditions are good, but Kōki believes that they are not enough to eliminate Kaguya's threat. If any ambitious person collects the Tailed Beast, Kaguya will still be able to descend again.
Therefore, the best solution is to seal Kaguya's power, let her live as an ordinary person in the Shinobi World, and allow Kaguya to find bonds like a normal person.
Once Kaguya recognizes the beauty of the Shinobi World and finds her bonds, she will no longer have the idea of destroying Shinobi World.
Hagoromo Otsutsuki, finding Kōki's words reasonable, ultimately agreed with Kōki's opinion.
Therefore, Kōki used Six Paths Level sealing technique to seal Kaguya's power, stripping the Tailed Beast and Madara Uchiha from Kaguya, leaving them only with the most basic ability to protect themselves, and then released them.
Finally, after the war brought about by Madara Uchiha was resolved, the Shinobi World entered a new chapter. Kōki also set about reviving his former comrades and teachers, fulfilling his initial wish.
In order to achieve peace, the system of the Five Great Nations disappeared at Kōki's suggestion, and was replaced by a brand new empire.
The new empire no longer viewed ninjas as tools of war, nor Ninjutsu as a means of killing enemies, but rather as a powerful tool for improving people's livelihoods. The people of the Shinobi World also benefited from the strategy of using Ninjutsu for their livelihoods, becoming prosperous and truly achieving peaceful development in the Shinobi World.