The world was enveloped in darkness. Three demons have taken over the Soul Emerald. And now the Human Kingdom is under their control. Someone must go to the Lord's Castle and destroy the artifact. And you will be the one on the road. You should know that the Dark Knights have summoned demons to chase you, so be prepared to fight many demon-possessed people on your way. Bless you, you are our last hope." After such a vague introduction, you will find yourself on a world map, on which you can move around as you please, visiting dungeons, shops and entering battle at any time.