Iris is an ordinary teenage schoolgirl, living in Sunny Bay. However, when she sings, strange events happen. Meanwhile, Talia and Auriana are searching for the lost princess of Ephedia, and decide to do an audition for all the girls in town. Encouraged by her best friend, Iris ends up auditioning, but her power destroys the room, and she is attacked by two strangers. Talia and Auriana come to help her, and explain to her that she is a princess with magical powers, that must save her kingdom from the clutches of Gramorr. The only way to save it is to master her powers, and find the oracle gems of the Royal Crown of Ephedia, which are scattered across Earth.