Bujingai: The Forsaken City2003

An isolated island-city stands as home to much of what remains of the human race. The ancient technology which annihilated most of the earth has now opened a gateway to a hellish dimension, unleashing a horde of demons upon the city. One warrior, armed with a pair of swords and an arsenal of magic spells, goes to battle the army of demons. This warrior's name is Lau, and thousands will die by his hand.