I appreciate that the protagonist is allowed to show some emotion here. "Boys don't cry" is usually the rule in this sort of isekai, outside of super-angst territory anyway.
@Ferrenia @Wolvenworks:
FYI: https://en.wikipedia.org/wiki/Jiraiya (Upshot: Naruto is not the origin of that triplet of names. Which is also part of why you'll see "Jiraiya" as a ninja name in other franchises. It should be noted that Naruto stole famous ninja names all over the place (e.g. Sasuke)).
Edit: I see someone else had already said as much not too further down the page XD I somehow skimmed over that. Welp