"Well, I'll forgive you for not knowing! Most of my books are adults only!"

Jiraiya laughed, a little over-dramatic but he did indeed keep copies of all his books on his person, so he whipped out a copy and signed it with a flourish. "Jiraiya of the Legendary Three." Even one glance at the back cover or inside would reveal that the hero of the book was named Naruto.

"Say, I'll even personalize it for you. What's your name?"