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It is rather apparent already but there are many areas in this game world that are only accessible once you gain the trust of the NPC that rules or the group of NPCs that live in there. The Fairy Country is fairly known by the Player Base as a large hidden map in the Forest of Beginnings, but because many had tried but failed to get inside, it has already been mostly forgotten by the player base.
Being located in a starter map made it even less appealing to the players, so nobody has really cared much, even less when the news about a Player stealing the equipment there spread out. Being the only thing that drove some here, now that such valuable items were gone, nobody really cared about the fairies.
I guess at the end, that's kind of a good thing. This way we can live more carefreely and in peace of not having to get annoyed by other Players coming here all the time seeking something.
Check "The Protagnist's Sister Is Actually the Strongest"!