Generate a 15-second 16:9 horizontal hyper-aggressive lethal anime fight video from the provided first frame.
Characters: Kagehiro (demon ronin, black shadow-flame twin wakizashi, ruthless) and Lady Muramasa (shinobi assassin, crimson blood-crystal chain scythe). Maintain 100% design consistency.
Style & Quality: High-budget dark fantasy TV anime fight scene, fluid fast-paced 2D sword choreography, visceral impact frames, rain & blood-spark physics, aggressive camera movement.
Time-Coded Action:
0.0s – 4.0s: Non-stop violent exchange. Muramasa hurls her chain scythe; Kagehiro parries mid-dash and engages in a high-speed melee clash.
4.0s – 8.0s: Rapid blade exchanges with heavy sparks and speed lines. Muramasa grazes Kagehiro's armor; Kagehiro ignites black blood-flame qi on his blades.
8.0s – 12.0s: Kagehiro slides low, executes a brutal upward cross-cut that shatters Muramasa’s scythe into red glass shards, and follows through with a lethal chest slash.
12.0s – 15.0s: Muramasa crashes into the wet mud dead. Kagehiro sheathes his blades calmly as rain pours under the red moon.
Camera & Technical: Fast combat tracking, macro impact cuts, dynamic camera tilt, 16:9 format, no text, no watermark.