1girl, aiba_yumi, bikini, breasts, brown_eyes, choker, collarbone, elbow_gloves, gloves, idolmaster, idolmaster_cinderella_girls, large_breasts, looking_at_viewer, navel, seihekiog, short_hair, side-tie_bikini_bottom, simple_background, sitting, solo, sweatdrop, swimsuit, thighhighs, white_background, white_bikini, white_choker, white_gloves, white_thighhighs