PurpleHeartNeptune wrote:IF is a Planeptune native in the first game if I'm not mistaken.
It's never stated in the first game, actually. The only thing that's implied is that she is not from Leanbox (since she worships Vert but she's in the guild), nothing else. In fact, if one was to go by the story of the guild, one could even argue that she may be from Lowee, although again there are no serious hints for that.
It's in mk2 where IF was declared to be from Planeptune.