Jiraiya_

In the shinobi world it's not how you live, it's how you die. A shinobi's life is not measured by how they live but rather it's measured by what they accomplish before their death. And looking back, my life has really been full of nothing but failure. Continually rejected by Tsunade, not being able to stop my friend and unable to protect either my student or my mentor. Compared to the great deeds of the hokage my actions are all insignificant.

Naruto. Now that I think about it, you're just like that novel's main character. You've inherited Minato and Kushina's wishes. Their hopes. And yet... And yet I... 

The student inherits their ninja way from their sensei! If you, won't give up, I have no business complaining! I am Jiraiya, the Gallant! I will not fail you!

I am....a shinobi!