1girl, o, arknights, bikini, black_bikini, blue_sky, blush, breasts, cloud, day, hair_between_eyes, hair_intakes, hair_rings, horns, kakyouin2002, long_hair, long_sleeves, medium_breasts, outdoors, parted_lips, puffy_long_sleeves, puffy_sleeves, purple_eyes, red_hair, sky, solo, standing, sun, sunlight, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, very_long_hair, water, water_drop