1girl, o, bikini, blush, bow, breasts, brown_hair, cleavage, collarbone, day, hair_bow, hair_tucking, halterneck, hayako, idolmaster, idolmaster_cinderella_girls, imai_kana, kneeling, looking_at_viewer, medium_breasts, outdoors, palm_tree, side-tie_bikini_bottom, solo, stone, string_bikini, striped, striped_bikini, swimsuit, tree