Create a Roblox-style 3D model of a final evolved spirit named "Flame King" (화염왕). Design a majestic phoenix-like creature made of living flames and blazing wings. The body should have smooth, stylized textures with fiery feather details. Use colors like deep red, bright orange, and glowing gold. Add floating ember particles and a flowing fire aura around the wings and body. The model should be simple enough for Roblox but appear powerful and collectible. Avoid hyper-realism or heavy textures, and focus on a bold, dynamic silhouette.