Where does fionna from adventure time live?

Answer 1

Even though there have been episodes of Adventure Time with Fionna, she technically does not exist in the show. She is made up by ice king in his fan fiction and he says they live in Ooh not Ooo. Fionna has been in episodes "Fionna and Cake" and "Bad Little Boy", both times the plot of the episode was made up by the Ice King or Marceline. The Ice King has made attempts to make Fionna come to life in the episode "Mystery Dungeon". as I said they are just a made up story so they probably not come up again.