郡道美玲(旧衣装)
The 1st and original default costume of [[Nijisanji]]'s [[Gundou Mirei]], as seen in post #6413621, which she used from January 2019 to January 2021 when it was replaced by [[Gundou Mirei (5th costume)|a new default costume]].
gundou mirei (1st costume)