1girl, ahoge, animal ear fluff, animal ears, arm up, armpits, arms up, black dress, blue dress, blush, bow, bowtie, cat ears, cat girl, cat tail, closed eyes, dress, gradient hair, hair down, long hair, multicolored hair, official alternate costume, pink hair, purple hair, sailor collar, sailor dress, sleeveless, sleeveless dress, solo, stretching, tail, virtual youtuber, white bow, white bowtie, white sailor collar