Haoru Kiji

About

Haoru Kiji is a very talented seamstress and makes all of Koromo's outfits. She can make any costume you've ever dreamt of and even more! She is shown to be quite shy about her creations, even refusing to wear them, even with her shapely body. She and Koromo have been friends ever since they were young kids, and developed their "costume wearer-costumer maker bond" when they were both five years old.

(Source: Cosplay Koromo-chan Wikia)