Reframe this concept as: semi Realistic Rengoku Kyojuro upper body, swipe flame sword, flame ring around from Demon Slayer illustrated in neon lights with a starry night sky backdrop. Apply lively red and blue neon, and gentle white and blue neon for the stars. Backdrop features a luminous night sky with twinkling stars and delicate nebula effects. Highlight Rengoku’s calm and commanding presence, 8K --ar 9:16 --raw --stylize 1000 --niji 7