In the 23rd Century, an attempt to develop a new source of energy has gone horribly wrong and 70% of the world's population is instantly wiped out. The survivors learn how to create energy from their own bodies, giving them superhuman abilities. The process of harnessing the power of these abilities is simply referred to as "Skill". For 400 years, the survivors transformed these abilities into a new and deadly fighting art. Now at the dawn of a new age, simply called the Age of Skill, mankind is faced with a new threat. A rift into a demon dimension has been opened, unleashing hordes of fiends on an isolated island city in Asia. One warrior, a master of Skill, travels to the city to combat this invasion. Armed with a pair of swords, and an arsenal of magic spells, Lau must combat the demons and try to rescue what's left of the survivors.