1girl, ahoge, arknights, ball, beachball, bikini, bird, black_eyes, black_hair, blue_sky, breasts, cloud, cloudy_sky, day, goggles, hair_intakes, holding, holding_ball, holding_beachball, huayi, id_card, la_pluma_(arknights), la_pluma_(summer_flowers)_(arknights), lanyard, light_rays, medium_breasts, official_alternate_costume, open_mouth, outdoors, short_hair, sky, solo, swimsuit, thigh_strap, thighs, wading, water, white_bikini