Fluttershy in the Diplomat-verse is Rarity’s assistant. She is usually just a face in the background, fetching things, delivering orders, being quiet. But she sees many things. And she’s one of the few people that Rarity completely trusts, a genuine friend. People have tried to get to Rarity through Fluttershy, but Rarity is very protective of her. The assistant keeps her grounded in reality, offers valuable input, even if it is delivered in a whisper.  
In her spare time, Fluttershy likes to train songbirds.  
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Artistic note: She wears her hair in a thick braid that just about reaches the small of her back.