I feel I should mention this and sorry for not being more specific earlier but Navi's glow isn't all that pronounced. Her skin does give off a very slight blue hue (it becomes more noticeable when she's doing magic or is angry) but it is not very recognizable as a light source especially in daylight. That and human form fairies are rare, not unheard of but the most common kind of fairy are the little glowing balls.

Bearing that in mind most people wouldn't look at Navi and immediately think "fairy". She looks for the most part like a normal fourteen year old girl. Her glow gives her a slight ethereal hue but nothing that would be recognized as supernatural. I thought I should mention this early on so that it doesn't become an issue were I'm having to ask people to change there posts. Zelda and Shadow Link can sense magic so it's natural that they recognized what she was and Navi tried to use Fairy magic on Link so a bit of a dead give away. The Happy Mask Salesman is just creepy and weirdly omnipotent so that's fine.

I'm not saying anyone's actually gone against this I just wanted to get it out there before I've got random NPCs going "Hey look a fairy" when Navi walks by.

I was thinking of picking up a second character. I sort of want both the sword spirits but since we're limited to two do you think I should go for Fi or Ghirahim?