1girl, ahoge, aqua-skybirds, arms_behind_back, blush, breasts, collarbone, cropped_shirt, denim, fang, hair_intakes, hair_ornament, hairpin, head_tilt, idolmaster, idolmaster_cinderella_girls, idolmaster_cinderella_girls_starlight_stage, jeans, koshimizu_sachiko, looking_at_viewer, midriff, navel, pants, purple_hair, shrug_(clothing), simple_background, skin_fang, small_breasts, solo, strapless, torn_clothes, torn_pants, tube_top, white_background, white_tube_top