Fantasia is a world far away from the dimension of reality. It was led by a princess who fell in love with the dark lord. The princess was sent to the mortal world as a punishment. Her memories were erased and her powers were disappeared as she became a mortal. To save Fantasia from the evil darkness, Ferillo sent the twelve legendary knights to the mortal world to find the princess and restore her power. Will be they able to do it?