TOKIHA MAI AND HER SICKLY YOUNGER BROTHER, TAKUMI, HAVE RECEIVED A SCHOLARSHIP TO ATTEND THE PRESTIGIOUS FUUKA ACADEMY. ON THE WAY, THE FERRY THEY ARE TRAVELLING ON BECOMES THE SITE OF A DESTRUCTIVE BATTLE BETWEEN TWO GIRLS WIELDING APPARENTLY SUPERNATURAL POWERS. THIS IS ONLY THE BEGINNING OF THEIR TROUBLES, AS MAI LEARNS THAT SHE HERSELF POSSESSES THESE POWERS- THE POWERS OF A HIME.