Inside the mental world.
Naruto had almost completely lost his reason and simply stood numbly before the cage.
Nine-Tails Chakra covered the entire floor, while the Nine-Tails pressed against the cage, his eyes fierce.
"That human loosened my seal again? He's playing with fire!"
The Nine-Tails chuckled. Ever since being sealed inside Uzumaki Naruto, he had never been this excited.
This was the first time he had felt freedom so close!
"If he loosens the seal just a little more, he won't be able to control me anymore."
The Nine-Tails struggled, desperately trying to tear the seal apart.
Outside.
Uchiha Yu kept the seal at a perfectly calibrated threshold.
If Naruto grew seven tails, even he couldn't guarantee that he could subdue the Nine-Tails without hurting Naruto.
At that point, the chakra left behind by Naruto's father, Minato Namikaze, might emerge.
That was Uchiha Yu's final fallback. If he lost control, Minato Namikaze could help him control the seal inside Naruto.
That was why Uchiha Yu dared to keep dancing on the edge of death.
"Now that I've restrained Naruto, all I have to do is control the chakra inside him."
Uchiha Yu took a deep breath. He used Yin Power to strengthen his Wood Release ninjutsu, maximizing its ability to restrain Tailed Beasts.
Otherwise, he would never have dared to take such a suicidal risk in his current state.
Now, he still had to wait for his Yin Power to recover.
Only Six Paths Power could ensure that Uchiha Yu's next move went without a hitch.
Over those ten minutes, Uchiha Yu constantly drew on his own chakra to reinforce his hold on Naruto.
Meanwhile, Naruto, driven out of his mind by Tailed Beast Chakra, kept struggling. Without Uchiha Yu's Wood Release, he would probably have broken free by