GAMER LOUNGE 20XX (NO CASUALS!!)

[Jermungandr]

Well sure, everyone is sure of that. But I'm not sure where it is we actually get that information, because I don't recall it ever being revealed within the context of the game itself. The only one in the game that ever speaks directly to or of Navi is the Deku Tree, who never uses any pronouns to refer to "her". Everyone else just refers to Navi as "a fairy".