1girl, arknights, black_jacket, black_shirt, breasts, closed_eyes, demon_horns, detached_collar, elinnasky, harness, horns, jacket, jacket_pull, long_hair, medium_breasts, open_clothes, open_jacket, open_mouth, red_hair, shirt, simple_background, smile, solo, surtr_(arknights), teeth, upper_body, upper_teeth_only, white_background