1girl absurdres alternate_costume animal_ears arm_strap bed_sheet black_hair black_leotard black_pantyhose blush breasts covered_navel detached_collar highres idolmaster idolmaster_shiny_colors kazano_hiori leotard looking_at_viewer lying mole mole_under_mouth necktie on_back pantyhose ponytail rabbit_ears seseri_aoba short_necktie small_breasts solo strapless strapless_leotard sweatdrop