1girl, arknights, arm_up, armpits, bad_pixiv_id, bare_arms, bare_shoulders, bikini, black_hair, blue_eyes, blue_sky, blush, breasts, cloud, cowboy_shot, day, groin, kyoken_illustrate, la_pluma_(arknights), la_pluma_(summer_flowers)_(arknights), looking_at_viewer, medium_breasts, navel, outdoors, short_hair, sky, solo, standing, stomach, swimsuit, thighs, water, white_bikini