(the picture has nothing to do with the content, but hey)
A little background:
Every two or so years the author of the original manga, Amako Soube-sensei, brings together about 100 (older lol) fans to a hotel where they have a get-together (‘tsudoi’) to basically celebrate RKRN for two days. Its also a meet-and-greet with the author, and fans basically ask her any questions they want about the series. Obviously not all of what Amako-sensei has in her head about the nintama world makes it to the manga, so a lot of the times the stuff she says during the meetings gives fans more insight into the series (like characters pasts and their futures etc).
A nintama fansite had compiled a lot of them (see the source) so I decided to translate them :D
Just remember this is NOT officially canon, but it’s still what goes on in the author’s head when she writes the series, so it’s kinda half-cannon haha
you can take it or leave it I guess
Also the info is a little darker, so if you like your Nintama as a happy kids show this might not be the best to read lol, but its still pretty interesting :D