1girl, arknights, bare_shoulders, bikini, criss-cross_halter, detached_sleeves, hair_between_eyes, hair_ornament, hair_rings, halterneck, hand_up, long_hair, long_sleeves, looking_at_viewer, outdoors, purple_eyes, red_hair, solo, star_(symbol), star_hair_ornament, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, upper_body, very_long_hair, yitiaokuchazi