1girl, bad_twitter_id, beach, bikini, black_eyes, black_hair, blue_bikini, blue_sky, cloud, collarbone, day, flat_chest, hair_ornament, hairclip, hand_up, hat, holding, holding_innertube, idolmaster, idolmaster_cinderella_girls, innertube, island, legs, looking_at_viewer, navel, ocean, outdoors, palm_tree, rabbit_hair_ornament, sasaki_chie, short_hair, sky, smile, solo, standing, stomach, straw_hat, swimsuit, thighs, tree, tsunenorip, wet