Re: 447 Spoilers
Here another note for the spoiler. From boyakist4649 one of the translators at Mangahelpers.
Just a quick trans note to add.
The last line of the spoiler - some additional information:
When Naruto is asked for an answer
He takes out Jiraiya's book, Dokonjyo- Ninja Gaiden (Gutsy Ninja Side-story)
translator's note: i think this is the book Naruto read during his Senjutsu training