1girl, aiv, arknights, black_dress, black_headwear, blue_hair, ch'en_(arknights), ch'en_the_holungday_(arknights), ch'en_the_holungday_(ten_thousand_mountains)_(arknights), cowboy_shot, dragon_horns, dress, horns, horns_through_headwear, long_hair, purple_eyes, short_sleeves, solo, standing