Story is placed in a fantasy world that apparently invaded by demons through a dimensional portal. The demon invasion lead all kingdoms to unite as one -- the Alliance, to battle the demon force and bring back the peace. Many years have passed, half breed between human and demon is inevitable. Those half breed -- called "the Witch", are hunted down by the Alliances because they see the witches as a great threat to mankind.

You will play as Alaster, The Royal Knight that uses melee combat with great defense and countering skill. And Edna, The Flame Witch that uses ranged attack with fiery skills. Each has their own unique personality that you can discover throughout the journey. source