"Your foundation is stable now. Next, come here. I'll give you a bit more power."
Arisu gestured for Hagoromo to come over.
Hagoromo obediently stepped forward.
Arisu then raised his right hand and gently pressed it against the center of Hagoromo's forehead. His palm then moved down, covering Hagoromo's pair of blood-red three-tomoe Sharingan.
Hagoromo only felt an indescribably vast power surge into his eyes like a flood. Intense pain, along with an unprecedented sense of clarity, swept through his entire body.
Hagoromo's pupils suddenly contracted, and even his breathing became hurried.
"This is...?!"
Beneath Arisu's palm, Hagoromo's Sharingan began spinning violently. The three tomoe rapidly merged together, eventually turning into rings of purple ripples.
The pattern of the Rinnegan quietly emerged. Its purple eye power was as deep as an abyss, carrying a heart-shaking pressure.
Hagoromo's body trembled slightly, his face filled with shock and disbelief.
He had never seen such a method before. With nothing more than placing a hand over someone's eyes, one could directly grant the Rinnegan.
This power that could change fate with a wave of the hand and bestow the supreme dojutsu was far beyond anything he had ever known.
"This is the Rinnegan. It can greatly increase your strength.", Arisu said calmly.
Even without Arisu saying it, Hagoromo could already feel the tremendous power contained within those eyes.
"The Rinnegan..."
Hagoromo slowly raised a hand, feeling the unprecedented eye power within them. It was as if the whole world had become different through these eyes.
Arisu withdrew his hand, his expression still calm.
"It's more than just the Rinnegan."
As soon as he finished speaking, he extended a finger again and touched Hagoromo's chest.
An even more terrifying, even purer, immense power instantly poured into Hagoromo's body. It was Arisu's version of the Six Paths Power.
Hagoromo's body shook violently. The chakra inside him erupted with explosive growth, like a volcano that had been ignited.
The Rinnegan and the Six Paths Power fit together perfectly. Sage chakra flowed through them, covering his entire body in a faint, holy glow.
The increase in power was explosive.
Hagoromo clenched his fists, feeling the nearly endless chakra and eye power within him. His eyes were filled with joy and astonishment.
"Teacher... This power... I, I really..."
Hagoromo looked at Arisu with gratitude.
Arisu looked at Hagoromo's transformation but did not show much joy.
Because things had already deviated greatly from the original storyline. Hamura had awakened the Tenseigan, and his strength far exceeded what it should have been.
Kaguya had also become much more cautious because of all the changes.
Although Hagoromo had now obtained the Rinnegan and the Six Paths Power, he still had no absolute chance of victory against Kaguya, Tenseigan Hamura, and the Ten-Tails together.
'The power is strong, but it's still not safe enough.'
Arisu thought to himself as he looked deeply at Hagoromo.
'The course of this world has already become distorted. I can't let my guard down.', Arisu thought to himself.
Hagoromo noticed the seriousness on Arisu's face. He put away his joy and asked earnestly, "Teacher, is there still a problem?"
Arisu was silent for a moment before speaking calmly.
"Your power has already surpassed this era, but your mother... and that transmigrator occupying your younger brother's body are both formidable opponents. Not to mention that the Ten-Tails is still in their hands. This battle is still one that will decide life and death."
After a pause, Arisu continued, "Next, you need to continue stabilizing this newly gained power."
"I'll give you more time to adapt to the combination of the Rinnegan and the Six Paths Power. Remember, don't rush to take revenge. Completely solidify your foundation first."
Arisu planned to let Hagoromo adapt to the Rinnegan and master Yin-Yang Release before sending him into battle.
In the original story, Hagoromo fought Kaguya immediately after awakening the Rinnegan.
Hagoromo bowed deeply.
"I understand! Thank you, Teacher."
Arisu stood to one side and gave a slight nod.
———
Several more days passed in the bamboo forest.
Hagoromo tirelessly fused the powers he had newly acquired day and night. With the support of the Six Paths Power, he mastered the Rinnegan far faster than expected.
Not only did Hagoromo completely master every ability of the Rinnegan, he also brought his use of Yin-Yang Release to perfection.
One morning, Hagoromo slowly opened his eyes. The purple light of the Rinnegan was restrained and profound.
With a wave of his hand, an ancient-looking spear that radiated terrifying power instantly formed in the air. It was the Sage of Six Paths' weapon from the original story, the Sword of Nunoboko.
Several black Truth-Seeking Balls floated quietly behind him, slowly rotating as they gave off an aura capable of erasing all things.
Hagoromo gripped the Sword of Nunoboko tightly. Feeling the power within him at its absolute peak, he took a deep breath and turned toward the old man who had been guarding him all this time.
"Teacher... I'm ready. Now, I can go fight Mother."
Arisu looked at Hagoromo as he was now. The Rinnegan, the Sword of Nunoboko, the Truth-Seeking Balls, Sage Art, the Six Paths Power... He had basically integrated all of these powers.
Arisu nodded inwardly. He also felt the timing was about right.
Everything he needed was in place.
"Very good."
"Go."
Arisu gave a slight wave of his hand.
Hagoromo solemnly bowed deeply to Arisu. Without another word, his figure suddenly became a streak of light and sped toward the palace.
———
[Inside The Main Hall]
Otsutsuki Kaguya was seated in the place of honor, while Hamura stood at her side. At the same moment, both of them frowned and abruptly looked toward the outside of the palace.
An extremely powerful aura, both familiar and unfamiliar, was rapidly approaching.
"Hagoromo..."
Kaguya's Byakugan was fully activated, her voice icy.
"Big Brother."
A sharp glint flashed through Hamura's eyes as the Tenseigan quietly appeared.
The next moment, the two of them appeared outside the main hall in the plaza.
Hagoromo descended from the sky and landed firmly in the center of the plaza.
Dressed in white robes, he stared coldly ahead with his purple Rinnegan. Several black Truth-Seeking Balls floated behind him, and the Sword of Nunoboko was gripped tightly in his hand, its tip pointing at the two of them.
The atmosphere instantly froze.
The moment Hamura clearly saw Hagoromo's appearance, his pupils suddenly contracted, and intense shock and disbelief appeared on his face.
'The Rinnegan... the Sword of Nunoboko... Truth-Seeking Balls?! That's impossible!!', Hamura roared inwardly.
'In the original story, Hagoromo only awakened the Rinnegan after I, his younger brother, died, out of grief!'
'I'm still alive, so how could he awaken the Rinnegan this early?! And he even has the Truth-Seeking Balls and the Sword of Nunoboko? What the hell is going on?!'
An overwhelming sense of wrongness rose in his heart.
Somewhere deep down, Hamura felt as though an invisible force was pushing everything forward.
'Could it be the will of the Naruto world?'
'Is the storyline being forcibly corrected?'
'Did it want to drag everything back onto the original track?'
"Damn Heaven..."
'I'll never let you have your way! I'll definitely change this storyline!', Hamura cursed inwardly, secretly clenching his fists.