Getsu Fuma: Descent to the Underworld "Ryukotsuki" has returned after a thousand years, undoing the seal upon hell and bringing forth monsters and evil spirits who threaten the end of the world.  The Getsu clan has kept watch over the underworld ever since the first Fuma defeated "Ryukotsuki". 
Now, their heroic 27th leader must descend into that vile abyss to root out the evil behind this cataclysm.