Eight Inner Gates!
One of the forbidden Jutsu of the Naruto world. It was truly a Jutsu made for losers.
This was also why Naruto trained to use it, only for him to realize a strange truth.
He wasn't a loser.
He had Tailed Beast levels of Chakra with a mortal body. Remember, every person in the Naruto world had a mortal body.
If he were a Ten-Tails Jinchuriki, then it would've been possible. Even then, it would've been a stretch to use this Jutsu.
What the Eight Inner Gates do is release all of the chakras in the user's body at once.
This much chakra could instantly enhance a person's strength. After all, that's what Chakra does.
But at the same time, Chakra has density.
Those who didn't practice Eight Inner Gates or become Kage-level Shinobi or become a Jinchuriki wouldn't notice this.
Because Chakra had density, it could harm the user if it was used too much. That's why the inner gates exist.
It only allows the user to use a harmless amount of Chakra.
And even if someone wanted to use Eight Inner Gates, they had to train until their bodies were ready to bear the impact of their Chakra.
Naruto couldn't do that.
Naruto had one hundred times more Chakra than a normal Jinchuriki or Kage. Even if he used the healing power of the Nine-Tails Chakra, it wouldn't be enough.
Because just the sheer release of his Chakra would crush his own body. That's why he couldn't use Boil Release after losing Six Paths Senjutsu Chakra.
Even Nine-Tails Chakra wasn't something he could use easily. He was only able to do it because he had trained in Senjutsu.
Senjutsu increased a person's durability by severalfold. Even while not being in Senjutsu, the effects wouldn't completely disappear.
That's why, despite being a complete loser, Jiraiya was able to reach Kage-level strength with just his Senjutsu training.
Of course, there was a limit to how much it could increase. That's why, despite knowing Sage Mode, Naruto couldn't use the Eight Gates.
If he tried, his body would start breaking down after the Fifth or Sixth Gates.
But if he didn't reach the Fifth or Sixth Gates, the boost wouldn't be substantial enough for him.
So, he didn't practice this Jutsu.
But here, he didn't need to worry about that. As Kurama stated, the side effects of the Jutsu weren't removed but cured.
That meant even if his body started breaking apart, it would also start healing itself.
Although this process would be extremely painful.
Naruto was afraid of anything but pain.
[Second Gate- Gate of Healing]
[Open]
[Third Gate- Gate of Life]
[Open]
[Fourth Gate- Gate of Pain]
[Open]
[Fifth Gate- Gate of Limit]
[Open]
[Sixth Gate- Gate of View]
[Open]
[Seventh Gate- Gate of Wonder]
[Open]
[Eight....]
"No!"
Naruto shook his head. Upon opening all seven Gates, his Chakra began to overflow like crazy.
The intensity of the Chakra produced by Nuclear Fission and the limits opened by Eight Inner Gates began to collide in his body, creating even stronger chakra.
"Naruto, why did you stop?"
Knowing Naruto as he did, Kurama knew pain wasn't the reason why Naruto stopped.
Even when opening the fifth gate, his body had already started breaking apart. His Chakra was used to keep them together.
"He is not my enemy."
Naruto released a deep breath, gritting his teeth as he bore the impact of the enormous Chakra on his body.
His Chakra alone was so dense that it shattered the crust of the planet beneath them.
'Control! After releasing this much Chakra, I am lacking control.'
At this moment, Naruto felt like the ground was soft as cardboard and space was as fragile as paper.
He was even afraid to move.
But he had to. He wanted to fight Luffy. So, he dashed forward.
His body flickered like never before. It shaped the very space in front of him, turning into an arrow.
"What?"
Luffy was stunned when he saw Naruto's figure in his Future Sight. By the time his body registered the Observation Haki, he instinctively moved to the side.
Boom!
At this moment, Naruto stood in front of him with his fist pointing to his head.
It tore through the space, creating a void. The very existence began to collapse in on itself as the void began absorbing everything around it.
When Naruto saw what his fist did, a crazy idea emerged in his head.
At first, this idea sounded truly crazy even to him. But with his Sage Mode, he couldn't be wrong.
Upon using Six Paths Senjutsu that could sense beyond his dimension, alongside opening the Seventh Gate that increased his strength several times, he was able to feel it.
His home!
Not just his home, but he could feel the entire universe.
At this moment, the truly confusing yet strangely amazing idea started forcing him to make a decision.
Luffy used Shave and retreated several kilometers away, taking deep breaths as he tried to feel the gap between him and Naruto.
At that moment, he truly felt like the gap had widened once more.
And this was after he sacrificed his Devil Fruit.
On the other hand, Naruto grinned. It looked like a crazy smile, but it had a strong self-confidence, as Naruto said.
"Kurama, do you want to go nuts?"
Kurama stayed silent. Their chakra connected. He knew what Naruto was thinking.
It was crazy. No, it was beyond crazy.
Naruto wasn't just thinking about fighting his opponent. He was trying to change the very existence of his world.
He was thinking of changing the very thing that started his life.
Or rather, taking it to a new path.
A path that not even the Old Man Sage of Six Paths could ever predict.
But, strangely, there was not a single hint of doubt in his eyes. If Sage of Six Paths or anyone else had told him this, Kurama would've said, 'Are you crazy?'
But his bond with Naruto was much deeper, a bond so strong that he unconditionally trusted Naruto's decision.
The corner of his lips rose as his fangs appeared. He stood on two legs, clapped his two paws together as his nine tails flared with Chakra.
"Let's go nuts, Naruto!"
Naruto tapped his heart with his thumb and roared.
[Eight Inner Gates]
[Gate of Death]
[Open]
At this moment, the very planet beneath them began shaking like crazy.
The chakra was so massive that it shook the entire space around them, collapsing the very existence itself.
Luffy felt a threat that he had never felt before, but he felt no malice.
When Naruto opened the seventh gate, he felt the malice, but not anymore.
Before the one who created all of this tried to do anything, Naruto made a hand sign, controlling all of the Chakra with the best of his ability.
[Multiple Shadow Clone Jutsu]
Not ten, not a thousand, not ten thousand, not a hundred thousand, but millions of clones appeared around him.
When these clones appeared, Naruto felt the strain on his Chakra Control lessen a lot.
Of course, this didn't matter to him because his body was reaching its limit as it began to burn out all of the Chakra and destroy his body.
But the moment he reached its critical point, his Chakra returned to normal, and so did his body.
Only the Eight Gates didn't stop.
That meant Naruto was able to perpetually use Eight Gates. Of course, this wasn't his purpose.
He used Eight Gates to gain more Chakra so that he could continuously make more clones of himself.
During the process, he transferred all of the Six Paths Senjutsu Chakra to Kurama, allowing Kurama to achieve Ten-Tails' level of Chakra.
This gave them an opportunity to do something outrageous.
All of his clones, alongside all of Kurama's clones, began gathering Nature Energy.
That's right!
This world, which would constantly refill its Nature Energy, was being absorbed by Naruto.
Since he had unleashed the full potential of his body, he could create a hundred times more Senjutsu Chakra.
And this Senjutsu Chakra was also mixed with Six Paths Senjutsu Chakra, which made it even more potent.
So by the time the literal controller of this space realized what was happening, Naruto had condensed nearly a hundred thousand Chakra Fruits' worth of Senjutsu Chakra.
More importantly, this was his own Chakra, not the Chakra he received from Hagoromo.
So, when the controller of this place found out about this and tried to take control of Naruto's body, Naruto concentrated all of that Senjutsu Chakra into his soul.
At this moment, Naruto's soul began transforming, turning him into a True Sage.
He wasn't the Sage of Six Paths because he wasn't controlling the power of Six Paths. But he was a true Sage because of all that Senjutsu Chakra.
When this happened, Naruto created the Truth-Seeking Orb and destroyed his body before using it as a sword to open the space in front of him.
He saw the presence of a strange being located several dimensions away, rushing towards them.
But he didn't do anything. He had already destroyed his body.
In his soul form, he looked at Luffy and his crew.
"I'm sorry. I don't know what will happen to you, but I want to do something for myself this time."
Luffy was very far away, but he still heard it. Instead of resenting Naruto's choice, he smiled and gave him a thumbs-up.
"Good luck, Naruto!"