The three warriors have to search the land behind the cause of the emission of a mysterious myst engulfing all over Legaia, which affects the beings called Serus causing them to rampage!... Some villages and towns were already subdued by it and its effects on Serus, so it is up to the heroes and their Ra-Serus to stop the madness generated by the desire of few, and prevent the fall of mankind!...
—Alex Felipe Flissak Villa