1girl, armpits, bare_shoulders, bikini, blush, breasts, bubble, fang, hair_ribbon, heterochromia, hololive, houshou_marine, houshou_marine_(summer), hxxg, large_breasts, long_hair, looking_at_viewer, ocean, official_alternate_costume, open_mouth, partially_visible_vulva, red_bikini, red_eyes, red_hair, ribbon, skin_fang, smile, solo, swimsuit, twintails, underwater, virtual_youtuber, yellow_eyes