The first and original default costume of Nijisanji's Suzuka Utako, as seen in post #3547359, which she used from March 2018 to February 2021 when it was replaced by a new default costume.
It comprised a collared white and red dress with frills and long sleeves, polka dot blue bow, red high heels with ankle cuffs, and a blue waist apron.
This tag implicates suzuka_utako (learn more).