CREATION BRIEF Produce a single 12-second cinematic vertical (9:16) text-to-vide

CREATION BRIEF Produce a single 12-second cinematic vertical (9:16) text-to-video sequence, an original anime-hybrid spectacle staged in a colossal dark arena. A lone invented anime-style swordsman drops into a low stance and sweeps a katana, summoning a COLOSSAL serpentine dragon of glowing translucent blue-white WATER that erupts and coils across the entire stage, scaled like an eastern drago...