Source: Vocaloid
Debuted: Expo TNT 19 
Worn at: Expo TNT 19, Kitacon 2011
Notes: Costume was made by Pixiekitty for a Vocaloid gathering at Expo TNT 19 in Mexico City, where we were cosplay guests. The blue and gold parts were made with a metallic material to match Pixiekitty's silver Hatsune Miku costume.