1girl, d, adapted_costume, aqua_eyes, arimoto_wataru, beach, bikini, blonde_hair, breasts, chest_sarashi, choker, denim, denim_shorts, hair_between_eyes, hairband, hololive, hood, hoodie, innertube, jacket, jacket_partially_removed, kazama_iroha, kazama_iroha_(1st_costume), medium_hair, navel, open_mouth, outdoors, partially_submerged, ponytail, sand, sarashi, see-through, short_shorts, shorts, sitting, small_breasts, smile, solo, stomach, swimsuit, virtual_youtuber, water, wet_jacket