riannn desu, oyama mahiro, onii-chan wa oshimai!, commentary, highres, 1girl, ahoge, animal ears, bare arms, bare shoulders, black pantyhose, bow, bowtie, breasts, brown eyes, detached collar, leotard, light blush, long hair, looking at viewer, official alternate costume, pantyhose, pink hair, playboy bunny, rabbit ears, red bow, red bowtie, red leotard, simple background, sitting, small breasts, solo, strapless, strapless leotard, white background, wrist cuffs