Digital painting of two anime characters standing in a vibrant, lush garden at night. The characters are from the anime "Demon Slayer." The girl in the foreground has long black hair, red eyes, and wears a red kimono with a black hakama. The boy behind her has long blue hair, blue eyes, and wears a blue and white kimono with a red belt. Both characters have serious expressions. The background features a starry night sky with a crescent moon, tall plants with blue flowers, and a dense forest. The art style is detailed and colorful.