A translation of a concept art page from Hyrule Historia. Images taken from History of Hyrule’s The Legend of Zelda art anthology. This page was translated by Snow.
Fi
“Being the spirit of the Goddess Sword, which later becomes the Master Sword, her design was based on various parts of the Master Sword. Moreover, from the beginning, she was set to be designed in “the style of a beautiful secretary at the protagonist’s side,” such as in anime from the 1980s. Designs based on robots, female thieves and others were considered until it was unanimously decided to use a design based on the Queen of Fairies from The Wind Waker.”
(Kobayashi, Designer)
I really like the Fi design with the high-heeled boots, blue whip-like objects, and almost Sheik-like cloth over her mouth.