Getsu Fuuma Den is set in a world filled with battles between humans and demons in ancient times. The protagonist of the game is Fuuma Getsu, a warrior famous for his battles against demons. In this game, Getsu Fuuma must fight to stop the return of Yami no Oni (The Demon of Darkness), who has been awakened by the actions of Genryu, a demon seeking to destroy the human world. The return of this demon plunges the world into danger. Fuuma Getsu must travel through various dungeons, fighting enemies with diverse abilities, including powerful bosses. Along the way, he must gather strength and weapons to help him defeat the evil demons in each stage.