1girl, ahoge, arknights, bare_shoulders, bikini, black_hair, blue_eyes, blue_sky, blush, breasts, cleavage, cloud, cowboy_shot, day, goggles, goggles_around_neck, grey_jacket, groin, hand_up, holding, jacket, jacket_over_swimsuit, la_pluma_(arknights), la_pluma_(summer_flowers)_(arknights), large_breasts, looking_at_viewer, nameko_houshi, navel, off_shoulder, official_alternate_costume, outdoors, short_hair, sky, solo, standing, stomach, swimsuit, whistle, white_bikini