Naruto sees the novel[Tale of the Gutsy Ninja] and says a certain line.
Nagato responds to his line.
That was what he said, facing his former master.[Unsure]
At the end of the book, there are hints written for Nagato, where [Jiraiya] thanks him.[Unsure]
From here on, it's to the story of the novel
The story begins with the protagonist himself becoming [like] Nagato[Unsure]
At the end, when he's going to say his name,
Naruto: "It's Naruto"
Nagato comes back to himself when that is said.
[Nagato?:] "'We trained under the same master... We can understand each other', huh"
[No idea, to be honest. It literally says "It was said with a joke"]
Arm strech[es] out form the wheelchair, and Nagato start making seals.
[Nagato:] "You got me to want to try to believe in you... Uzumaki Naruto!"