1girl, o, arknights, bikini, bird, black_bikini, blue_sky, breasts, cai_yuan, cellphone_photo, cherry, cleavage, cloud, cloudy_sky, cowboy_shot, day, detached_sleeves, food, fruit, hair_ornament, horns, long_hair, medium_breasts, navel, ocean, official_alternate_costume, outdoors, purple_eyes, red_hair, seagull, sky, solo, star_(symbol), star_hair_ornament, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, swimsuit_cover-up, thigh_strap