Adam's purpose in keeping Danzo was to lure Sasuke to Konoha.
If he remembered correctly, when Jiraiya infiltrated the Amegakure, Sasuke and Itachi also fought a life-and-death battle in the Uchiha Clan's secret Base.
Under Itachi, his older brother's various acts of holding back, Sasuke not only eliminated the hidden Orochimaru threat within him but also achieved the final victory.
However, before he could recover from the complex emotions of killing his brother, Obito appeared and told him part of the truth about the Uchiha massacre that year, causing him to transfer all his hatred to Konoha and Danzo.
Under Obito's persuasion, Sasuke decided to join the Akatsuki Organization to help Akatsuki collect Tailed Beasts and seek an opportunity for revenge.
In the original plot, Danzo went to the Five Kage Summit, and Sasuke went to intercept and kill him. Now, however, Danzo was confined in Konoha because of him.
Then Sasuke would come to Konoha sooner or later to seek revenge on Danzo, and he only needed to wait patiently.
As for why he wanted to lure Sasuke back to the Village, it was naturally not to help Naruto, but because he wanted to obtain Indra's Chakra, and Sasuke was Indra's reincarnation.
Uchiha Madara transplanted Hashirama's cells, who was Ashura's reincarnation, thereby awakening the Rinnegan.
He now possessed the same Ashura reincarnation body as Naruto. Perhaps by obtaining Sasuke's Mangekyo Sharingan, he could acquire Indra's Chakra and thus awaken his own Rinnegan.
Even if not, in the future, if he wanted to research how to awaken his own Rinnegan, Sasuke, as Indra's reincarnation, would definitely be indispensable.
After Adam left, Jiraiya said to Tsunade:
"Some of Danzo's words still make sense. Now Akatsuki only needs the Eight-Tails and the Kyuubi to complete their plan. If Naruto continues to go on missions to find Sasuke, he will inevitably fall into their trap."
Tsunade's face showed a pained expression. "You know Naruto's personality. Before he finds Sasuke, I'm afraid he won't be willing to be confined in the Village."
If it were anyone else, she would have long since found a hidden place in the Village and forcibly protected them.
But Naruto was different from others for her.
It was because Naruto had made her regain her courage and see the shadows of her former lover and brother that she was willing to return and become the Naruto.
So she didn't want to take coercive measures against Naruto.
"It's not about being confined in the Village. I plan to take him to Mount Myōboku in a few days for his final training. Otherwise, with his current strength, if he encounters Akatsuki during a mission, he will have no ability to resist at all.
Moreover, he has become much more mature now. He knows that if his strength is not enough, even if he finds Sasuke, he won't be able to bring him back.
So he won't refuse."
Jiraiya explained with a smile.
He had always supported Naruto's decision to bring Sasuke back, because back then, he was also like Naruto, constantly seeking information about Orochimaru, wanting to bring him back to Konoha.
Moreover, he believed that Naruto was the Child of Prophecy mentioned by the Great Toad Sage and would surely bring peace to the Ninja World.
It was just that Akatsuki's strength was too great. Even he, if it weren't for Adam's rescue this time, would have already died.
Sending Naruto to Mount Myōboku was partly to protect him from being found and captured by Akatsuki, and partly to allow him to undergo his final training.
"Are you saying you've decided to teach him Sage Mode?"
Tsunade immediately understood Jiraiya's plan.
Sage Mode, this was a very powerful Ninjutsu. Her Grandpa, Senju Hashirama, could instantly enter Sage Mode to fight.
And Jiraiya had also learned the unique Sage Mode of Mount Myōboku at Mount Myōboku. The Fourth Hokage also learned it later, and now it was finally Naruto's turn.
"That's right. I think with his current strength, he can already learn it, and I believe he will definitely learn it!"
Jiraiya nodded.
"The prerequisite for learning the Flying Thunder God Technique is to have the innate ability to sense space. Only by being able to sense space can one sense the Flying Thunder God Jutsu Formula and then activate the Ninjutsu.
We are not as talented as Fourth Hokage Lord, unable to sense space on our own. It was Fourth Hokage Lord constantly taking us on Flying Thunder God spatial movements that allowed us to gradually sense some of it.
So the three of us cannot use the Flying Thunder God Technique on our own; we need to sense it together, using the Flying Thunder God Formation to barely use it. It can only be used to transport people and cannot be used in battle.
For a period of time in the future, we will guide you on the theory of the Flying Thunder God Technique and also take you on Flying Thunder God movements to help you sense space.
As for whether you can learn it, that will depend on you.
However, Adam, we hope you are mentally prepared. Since the Second Hokage created this Ninjutsu, many exceptionally talented Ninja in the Village have learned this Ninjutsu.
But truly, besides Fourth Hokage Lord, no one else has successfully used it.
We have also guided many geniuses to learn it before, and they all eventually chose to give up."
The next day, Tsunade indeed called the Genma team to guide Adam on the Flying Thunder God Technique. However, as soon as the teaching began, the three gave Adam a preventative shot.
And the three were indeed not exaggerating. An hour later, Adam had truly not learned much about the Flying Thunder God Technique.
Unlike other Ninjutsu, as long as you form the hand seals correctly and control your Chakra well enough, you can basically release the Ninjutsu.
The difference is that masters form hand seals faster, release Ninjutsu faster, and with greater power, while beginners are slower and have less power.
But the Flying Thunder God Technique is different. If you learn it, you learn it. If you don't, there's absolutely no reaction.
"As expected, it's not that easy."
After returning to his World, Adam looked at the Flying Thunder God Technique scroll in his hand and began to ponder.
If he continued at this pace, he felt that even if he found Minato, it would probably take a long time to learn the Flying Thunder God Technique.
The key to this technique was the sensing and understanding of space, and Minato couldn't teach him that either.
"Perhaps the principles are all connected."
At this moment, he suddenly had an idea.
He felt that Ninjutsu, magic, superpowers, and technology, while seemingly vastly different, should all be the same at their root.
The same spatial movement can be achieved by Ninjutsu, magic, superpowers, and technology.
And they can also interfere with each other, just like in the S.H.I.E.L.D. TV series, Fitz made a quantum entanglement device that prevented Inhumans who could teleport from doing so.
In the future of this Universe, Doctor Strange of the main Universe was also restricted from using magic by a pair of high-tech handcuffs.
Since learning the Flying Thunder God Technique alone is so difficult, why not learn Apparition along with it, and then find some books on quantum entanglement or spatial theory to read, thereby learning through analogy.
Perhaps both the Flying Thunder God Technique and Apparition could be learned quickly.