2girls, arknights, black_dress, black_gloves, black_headwear, breasts, cleavage_cutout, clothing_cutout, dress, elbow_gloves, gloves, grey_hair, holding_hands, interlocked_fingers, long_hair, looking_at_viewer, multiple_girls, official_alternate_costume, red_eyes, sketch, specter_(arknights), specter_the_unchained_(arknights), specter_the_unchained_(born_as_one)_(arknights), very_long_hair, white_dress, white_gloves, white_headwear, yan_ge