Light Yagami has plans to wipe out the Phantom Empire in order to become the hero of Earth as Kira. He would need the help of Iona Hikawa and Hime Shirayuki to do this.
Feeling his role as the savior of the world has been stolen by Precure, Light Yagami vows to wipe them all out. Along the way, he meets a childhood friend and her name is Iona Hikawa.