Since the artificial mass production of Nine-Tails jinchuriki was impossible, Ueno Kei abandoned that impractical idea. It also spared him the headache of figuring out how to persuade Jiraiya and Tsunade.
"Then thank you for your hard work on this experiment and testing. Just make sure the cleanup is handled properly. Don't let Sora suffer any adverse consequences," Ueno Kei said evenly.
"Yes! Understood!"
Afterward, Ueno Kei and Jiraiya left the underground research facility.
On the way, Ueno Kei began discussing the Nine-Tails with Jiraiya. Some matters had reached the point where they had to be dealt with. They could not keep putting them off indefinitely, especially under the looming pressure of Akatsuki!
"Senior Brother Jiraiya, I think it's necessary for Naruto to begin training to control the Nine-Tails' chakra!" Ueno Kei said solemnly as they walked. If Naruto could perfectly control the Nine-Tails' power, then under normal circumstances, no one would be able to threaten his safety.
Naruto's current strength was already approaching Kage level. With the Nine-Tails' power added on, Ueno Kei believed that aside from the leader with the Rinnegan, only that mysterious owner of the Mangekyō Sharingan could pose a certain threat to Naruto.
The Sharingan was highly effective at restraining tailed beasts, and the Mangekyō Sharingan could even control them! Whether it was Uchiha Madara at the founding of Konoha, or the mysterious man during the Nine-Tails incident fifteen years ago—
Both had relied on the Sharingan to control the Nine-Tails!
"Indeed, it would be good for Naruto to learn to fully control the Nine-Tails' power. But I'm afraid Naruto may not be up to it yet," Jiraiya said with a frown and a sigh.
"Even so, Naruto must begin training. There isn't much time. Akatsuki won't give us much time to prepare, and we