1girl, all_fours, alternate_costume, backless_outfit, bare_legs, blush, breasts, brown_hair, cleavage, cleavage_cutout, clenched_hands, clothing_cutout, ebifu, feet_out_of_frame, grey_sweater, idolmaster, idolmaster_million_live!, legs, long_hair, medium_breasts, meme_attire, miyao_miya, reference_inset, ribbed_sweater, simple_background, sleeveless, sleeveless_sweater, solo, straight_hair, sweater, very_long_hair, virgin_killer_sweater, white_background