Kimetsu no Yaiba-style anime transformation with brush calligraphy

Transform the user-uploaded image (photo or illustration) into a dramatic Japanese-inspired anime artwork. Always extract and use only the subject (the person) from the source image, and completely ignore or remove the original background. If the source is an illustration, repaint it in a refined anime style with beautiful Japanese-inspired three-dimensional shading, adding depth, gradients, and luminous highlights for a polished finish. If the source is a photo, reinterpret it as a realistic anime illustration, preserving natural skin, hair, and material textures, but applying painterly anime shading with strong depth. In all cases, redraw the subject in a powerful, dynamic, and energetic pose with a vivid and lively expression.