1girl, p, arknights, bare_shoulders, bikini, black_bikini, black_ribbon, blue_sky, bracelet, breasts, cleavage, criss-cross_halter, day, detached_sleeves, hair_intakes, hair_ornament, hair_rings, halterneck, holding, horns, jewelry, large_breasts, leaning_forward, long_hair, long_sleeves, looking_at_viewer, navel, official_alternate_costume, outdoors, purple_eyes, red_hair, ribbon, side-tie_bikini_bottom, sky, solo, star_(symbol), star_hair_ornament, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, swimsuit_cover-up, thigh_strap, tongue, tongue_out, very_long_hair, wading_pool, water, yuki_(nanao_yuki)