Kamui is a public space.
No, it isn't.
Kamui is Uchiha Obito's private space.
That idiot Kakashi Hatake mastered the usage of the Kamui Mangekyo Sharingan and started throwing things around in the Kamui Space—today it's a cannon shell, tomorrow it's a shuriken...
Uchiha Obito realized the trouble of losing the Kamui Mangekyo Sharingan, if while he's in a future battle, that idiot Kakashi Hatake starts throwing things inside...
"Should I take back the eye I gave to that idiot…"
Uchiha Obito didn't want to go back on his promise, mainly because he didn't want to be laughed at for trying to take back something he once gave away.
For an Uchiha, that would be too disgraceful!
"Forget it."
Uchiha Obito thought of Nagato's Rinnegan, and he desired more to obtain the Rinnegan from Nagato: "Better find a way to get the Rinnegan in the future, only with the Rinnegan can one control the Ten-tails to release the Infinite Tsukuyomi. I don't trust that guy Madara..."
Compared to just one Mangekyo Sharingan...
Uchiha Obito wanted the Rinnegan to control the Ten-tails even more.
Inside Konoha Village.
Team Seven and Team Three successfully completed the mission to rescue the Kazekage and were returning to Konoha Village together. Naruto Uzumaki and Haruno Sakura were still curious about the Root Ninja following alongside them.
"Go train hard first..."
Kakashi Hatake refused to answer Naruto Uzumaki's questions. He felt there was too much of a gap between Naruto Uzumaki and Uchiha Sasuke's abilities and insisted Naruto must train hard after returning to the village.
Just right.
Kakashi Hatake knew some secrets.
For example, there were four Edo Tensei'd Hokage in Konoha Village.
This was supposed to be a secret within Konoha Village, but Kakashi Hatake, during his two or three years back in the Dark Department, naturally learned of this secret.
When Kakashi Hatake returned to the village to report to Tsunade, he casually put forth his request: "I want Minato-sensei to guide Naruto…"
"Just the right timing with the four previous Hokages just returning…"
Tsunade frowned, but spoke up: "I can bring this up at the village's Hokage meeting, and the Fourth Hokage should agree... they're all currently at Root."
"The speed needs to be quicker."
Kakashi Hatake felt a sense of urgency and said in a low voice: "The Akatsuki organization has already begun to act, and Naruto's training outcomes still aren't enough..."
"Still not enough?"
Tsunade felt that Naruto Uzumaki performed quite well in the last test: "I think the little guy has made quite a lot of progress these past years…"
"..."
Kakashi Hatake let out a sigh to himself.
Although Naruto Uzumaki's progress was big enough, there was still too much disparity with Uchiha Sasuke, and Naruto's strength was still not sufficient to protect himself. The Akatsuki Organization had captured the One-Tailed Jinchuriki from the Hidden Sand Village and would certainly target Naruto Uzumaki, the Nine-Tailed Jinchuriki…
Thankfully.
Kakashi Hatake had a pretty good relationship with Akihara Kagura.
Kakashi Hatake straightforwardly went to see Akihara Kagura, hoping to meet with the Fourth Hokage, Namikaze Minato, to discuss the issue of Naruto Uzumaki's education.
Akihara Kagura had just received the news that the One-Tailed Shukaku had been retrieved and casually suggested his idea: "Why not let Naruto apply to join Root? His abilities are sure to improve quickly…"
"Lady Tsunade definitely wouldn't agree…"
Kakashi Hatake couldn't imagine Naruto Uzumaki joining Root and kept shaking his head: "Additionally, if that guy joins Root, wouldn't you, the leader of Root, have quite the headache?"
There are a few in Konoha who are not suited to join the Dark Department or Root, such as the master-student pair of Might Guy and Rock Lee, and Naruto Uzumaki—their personalities are too sunny...
Kakashi Hatake was an old friend of Akihara Kagura's, and such requests, though inconvenient, couldn't be refused. Akihara Kagura directly agreed to Kakashi Hatake's request.
Besides.
Kakashi Hatake was still pushing his luck a little, rubbing his palm awkwardly: "I heard you mastered the Rasengan's nature transformation…"
Clearly.
Kakashi Hatake wanted Akihara Kagura's help too; he felt that both of his disciples, Uchiha Sasuke and Naruto Uzumaki, were quite suitable for Akihara Kagura to assist in training and guidance. At least Uchiha Sasuke showed a strong performance in this mission.
"Want to train Naruto?"
Uchiha Sasuke was very interested in this and voluntarily spoke up: "If possible, I can help too. I haven't had a proper match with that guy for quite some time…"
"Before that…"
Kakashi Hatake hesitated, unsure whether to do something or not: "Should we... tell Naruto about his parentage…"
Although it might not be the right time…
But for a child who had never met their parents, there might never be a so-called right or wrong time. This moment was relatively stable, instead.
Konoha's Third Training Field.
Kakashi Hatake brought Naruto Uzumaki there.
Akihara Kagura, Namikaze Minato, and the Root Ninja with a cat-faced mask, the three Flying Thunder God users, directly appeared at the training ground. Namikaze Minato was very excited upon receiving this news, as he had long wanted to meet and chat with his son.
"Eh?"
Naruto Uzumaki immediately ignored Namikaze Minato, becoming very interested in the Root Ninja wearing the cat-faced mask: "Thanks a lot for last time…"
"No need to be polite."
Uchiha Sasuke felt somewhat uncomfortable about this.