The ninjutsu Yeyu had developed now could only be used by someone at Otsutsuki Shuho's level.
No one in the Ninja World, including the Sage of Six Paths and Kaguya Otsutsuki, could use them.
So Yeyu had taught Sasuke and the others the ninjutsu he had developed in the past as hobbies.
The Rasenshuriken was one of them.
Naruto simply did not know that.
"I never expected this ninjutsu to have been developed by Yeyu too."
Naruto felt rather helpless.
"So in the end, I still learned his ninjutsu?"
Yamato looked at Naruto's helpless expression.
He was speechless. "What is there to feel bad about when learning Lord Hokage's ninjutsu? This technique is extremely powerful. Once you master it, it will help you greatly."
Naruto nodded.
He naturally knew that none of Yeyu's ninjutsu were weak.
Just as Naruto was learning the new ninjutsu and controlling the Nine-Tails' chakra,
the weather suddenly changed in the sky.
The cloudless sky turned dark with storm clouds.
Lightning even flashed through them.
This bizarre phenomenon immediately drew everyone's attention.
Kakashi, who had been reading, Naruto, who had been training, and Yamato beside him all raised their heads to look at the sky.
At the Hokage Building,
Jiraiya, Hiruzen, Tsunade, Sasuke, Neji, Sakura, Guy, and several others had already gathered.
Every well-known Konoha ninja of Jonin rank and above was here.
They nearly filled the rooftop of the Hokage Building.
The people present alone possessed enough strength to suppress the entire Ninja World.
Or rather, Sasuke or Neji alone would have been enough.
"What is going on? Could this be aimed at Konoha?"
Asuma said.
Hiruzen looked at the sky with a solemn expression.
"What an idiot!" Hiruzen said helplessly.
The gravity on his face was not because Konoha was facing danger, but because