1girl, allenerie, arknights, bare_shoulders, bikini, blue_sky, breasts, cloud, day, hair_between_eyes, hair_rings, horns, long_hair, long_sleeves, looking_at_viewer, medium_breasts, purple_eyes, red_hair, sky, solo, standing, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, thighs, very_long_hair, wading, water