Dark Fantasy Anime Swordsman vs Demon

A cursed swordsman wearing shattered black armor and a torn crimson scarf stands alone inside a ruined imperial capital while a colossal horned demon descends between collapsing towers, the warrior lowers his blade as black energy coils around his body, then launches forward with explosive speed, cuts through waves of armored fiends, deflects flaming projectiles with rapid circular sword strikes and runs vertically along a falling building before leaping toward the demon’s face; the creature opens a burning third eye and releases a city-destroying beam, but the swordsman twists through the attack, slices the beam apart and drives his blade into the demon’s forehead, high-end dark fantasy anime aesthetic, ultra-dynamic sakuga movement, extreme perspective distortion, aggressive low-angle tracking, rapid whip pans, impact frames, speed lines, sharp close-ups of eyes and blade edges, dramatic cel-shaded lighting, red moonlight, black flames, glowing debris and heavy atmospheric smoke, savage apocalyptic tension, ending with the demon splitting vertically in a silent flash before the entire skyline erupts behind the swordsman in a continent-sized crimson explosion.