1girl, o, ahoge, arknights, ass, bare_arms, bare_shoulders, beach_umbrella, bikini, black_eyes, black_hair, blush, breasts, day, feather_hair_ornament, feathers, feet_out_of_frame, frilled_bikini, frills, goggles, goggles_around_neck, hair_intakes, hair_ornament, hair_rings, hairclip, hand_on_own_face, hand_up, la_pluma_(arknights), la_pluma_(summer_flowers)_(arknights), light_rays, looking_at_viewer, medium_breasts, official_alternate_costume, open_mouth, outdoors, partially_submerged, pool, short_hair, sideboob, solo, standing, sunbeam, sunlight, swimsuit, umbrella, wading, water, whistle, whistle_around_neck, white_bikini, yu_hua