Board Thread:Boruto Discussions/@comment-25319479-20181020083112/@comment-6036561-20181021100945

Elveonora wrote: Well....
 * Can use Rasengan
 * Can summon Toads
 * By all means a former Konoha Shinobi, considering his chakra is registered

How is he not Jiraiya then?

As already said, age and build doesn't fit. Also his personality is way too different, and the toads he uses doesn't look like the standard toads.

The closest thing I could think of for KK to be Jiraiya is that he's a clone, but what I really hope he's someone else related to him or Minato.

Also, they are doing with KK the exact opposite Kishimoto did with Tobi. Kishimoto introduced Tobi giving us little hints that he could have been Obito, while here every time KK appears they are throwing at us giant sings to make us thing "Oh look, he's Jiraiya!"

From a narrative standpoint, it would make sense that the writers would try to hid the fact that he's Jiraiya, since it would be a huge "plot twist", or at least try to give us "false" hints and make us think that, at the end, he isn't actually him (again, like Kishimoto did with Tobi)

I'm pretty sure (and I hope I'm right, since I wouldn't like KK to be Jiraiya) that the writers are trying to make us sure he's Jiraiya while he's not