1girl, d, ass, back, back_focus, bare_arms, bare_shoulders, bent_over, bikini, blue_sky, blurry, blurry_foreground, blush, breasts, caustics, cloud, day, depth_of_field, fangs, foreshortening, from_behind, hair_between_eyes, haru_yu, heterochromia, hololive, houshou_marine, houshou_marine_(summer), lens_flare, long_hair, looking_at_viewer, looking_back, official_alternate_costume, open_mouth, outdoors, partially_submerged, ponytail, red_bikini, red_eyes, red_hair, shoulder_blades, sideboob, sidelocks, sky, smile, solo, sunlight, swimsuit, teeth, tongue, upper_teeth_only, virtual_youtuber, wading, water, water_drop, wet, yellow_eyes