Physical force was more useful than reason. That had always been an unchanging truth in the Ninja World.
Even Naruto, who had the strongest Talk no Jutsu, often only got the chance to talk his opponents around after defeating them.
No matter how persuasive your words were, you still needed strength to make the other side submit.
Especially when they didn't accept your ideals or actions, nothing was more effective at changing their minds than giving them a good beating.
However.
Natsu Yuu hadn't planned to actually kill Old Man of Six Paths.
First, Naruto probably wouldn't go that far.
But just beating the old man up and making him realize the absolute force wielded by Naruto and Sasuke from Ninja World 7 was no problem.
Second, killing Old Man of Six Paths for good wouldn't be easy.
After all, this was only a mental space, not the physical world.
Even if they completely destroyed his current mental body, it would be difficult to harm him at his core, much less invade his soul world in the Pure Land.
But if Old Man of Six Paths refused to yield, then having this mental body destroyed would still be enough to gravely wound him and keep him from making trouble for a while.
There was one other possibility.
He might simply withdraw from the fight, flee this mental space, and retreat into his own soul world in the Pure Land.
Fortunately, Natsu Yuu had prepared for that, too.
When he'd sent Naruto and Sasuke in to draw Old Man of Six Paths's attention, he'd already forcefully taken partial control of this mental space.
That gave him some control over the situation and kept Old Man of Six Paths from running off whenever he pleased.
Come and go as he pleased?
As