Replace the plain two-person martial-arts sparring video [reference video 1] with a bare-handed feeling-out style before a cold-weapon duel.
Replace the scene with a medieval stone-castle platform, an ancient courtyard ground, a mountain-fortress outer platform, or a simple stone-brick dueling ground, the background being castle walls, wind, fog, a distant mountain line, the ground flat stone [reference image 1].
Replace the wardrobe of the man in dark clothing in the video with [reference image 2], and replace the man in light clothing in the video with [reference image 3]. The actions still stay unchanged, not altering the original rhythm.
The AI effects only enhance the environment and texture: wind blowing the garment hems, light fog, a small amount of dust at contact points, a cold-toned metallic reflective quality, slight grain, and epic color grading. The overall style is restrained, realistic, classical hard-edged duel atmosphere. The background music is beat-synced.