happyundergate, oyama mahiro, onii-chan wa oshimai!, commentary request, highres, 1girl, ;), ahoge, alternate costume, bare arms, bare shoulders, black pantyhose, breasts, brown eyes, detached collar, grey hair, grin, hairband, high heels, leotard, looking at viewer, low twintails, multicolored hair, nail polish, necktie, one eye closed, pantyhose, pink hair, playboy bunny, red hairband, red leotard, red nails, red necktie, red shoes, shoes, simple background, sitting, small breasts, smile, solo, strapless, strapless leotard, twintails, two-tone hair, wrist cuffs