1girl, arms_behind_head, baseball_cap, bikini, bird, blue_sky, breasts, cloud, day, eyewear_on_head, hat, heterochromia, hololive, houshou_marine, houshou_marine_(summer), jacket, large_breasts, long_hair, long_sleeves, looking_at_viewer, official_alternate_costume, open_clothes, open_jacket, outdoors, partially_submerged, partially_underwater_shot, red_bikini, red_eyes, red_hair, sky, solo, swimsuit, tyabesu, virtual_youtuber, water, yellow_eyes