1girl, o, adapted_costume, armpits, arms_up, ball, bare_legs, barefoot, beachball, bikini, blonde_hair, blue_bikini, blush, border, chest_sarashi, cloud, day, dutch_angle, hair_between_eyes, hair_ribbon, hololive, jacket, kazama_iroha, kazama_iroha_(1st_costume), kneeling, long_hair, looking_at_viewer, navel, ocean, open_clothes, open_jacket, open_mouth, outdoors, parted_lips, partially_submerged, partially_underwater_shot, pokobee, ribbon, sarashi, side-tie_bikini_bottom, sideways_glance, sky, solo, surfboard, swimsuit, umibouzu_(niito), unfinished, virtual_youtuber, water, white_border