1girl, arisugawa_ya, arms_behind_back, black_bra, blue_hair, blush, bra, breasts, cleavage, collarbone, cropped_torso, dark_blue_hair, hayami_kanade, idolmaster, idolmaster_cinderella_girls, large_breasts, navel, parted_bangs, simple_background, solo, sweatdrop, undersized_breast_cup, underwear, underwear_only, upper_body