1girl, animal_ears, ass, back, backless_leotard, black_leotard, breasts, fishnets, grisaia_(series), leotard, long_hair, pantyhose, playboy_bunny, purple_eyes, rabbit_ears, rabbit_tail, sakaki_yumiko, solo, strapless, strapless_leotard, tail, thighs, thong_leotard