shiina yuika, shiina yuika (12th costume), nijisanji, commentary, highres, revision, 1girl, animal ears, armpits, arms up, blush, bow, bowtie, breasts, cleavage, closed eyes, collar, detached collar, hair ornament, hairband, hat, large breasts, long hair, mini hat, navel, open mouth, pink hair, pink vest, pom pom (clothes), pom pom hair ornament, rabbit ears, red bow, red bowtie, sakana1i, simple background, solo, stomach, stretching, tearing up, teeth, twintails, upper teeth only, vest, virtual youtuber, white background, white collar, white hairband, white hat