gee, so Jiraiya purpose is to find out who pain is, and hopefully the secret to defeat him, otherwise, what is the big deal! And it might took him his life just to realize Pain was one of his students (and he got that before the fight). This reminds me of Asuma and Hindan. Its a bit retarded how Jiraiya keep wondering stuff about these bodies, instead of a simple "well, the pain i know arent these guys, i need to find out where is the real pain and how he control these bodies" or "gee , i dont think i can defeat pain on my own, let go and get more ppl". Given he already know that pain was that dark hair student, and as a sanin, he must have heard of tons of justsus that allow people to control dead bodies (Oro, hello!)....I guess Kishi's plot-no-justsu is always unsatisfying. he tries to create depth and mysteries that aint necessary to the plot. Maybe he never heard of K.I.S.S.
Killing time while waiting for the next chapter. OnePiece, that is.