1girl, arknights, bare_shoulders, barefoot, beach, bikini, black_choker, blue_sky, breasts, choker, cleavage, cloud, criss-cross_halter, day, feet, hair_between_eyes, hair_rings, halterneck, holding, horns, large_breasts, legs, official_alternate_costume, outdoors, petals, sandals, sidraxiii, single_sandal, sitting, sky, solo, stomach, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, toenails, toes