1girl, arknights, arm_up, black_background, black_dress, black_jacket, breasts, demon_horns, detached_collar, dress, elinnasky, harness, horns, jacket, jacket_pull, long_hair, looking_at_viewer, medium_breasts, open_clothes, open_jacket, open_mouth, purple_eyes, red_hair, solo, surtr_(arknights), upper_body