Three young girls, Hikaru, Umi, and Fuu, are transported to the magical world of Cephiro while on a field trip to Tokyo Tower. They soon meet Master Mage Clef, who informs them that they have been summoned to become the Legendary Magic Knights and save Cephiro. The girls are reluctant, wishing only to return home. Clef explains that they must seek out the three Rune Gods for assistance and then bestows armor and magical powers upon each of them. He also reveals that High Priest Zagato has kidnapped the Pillar of Cephiro, Princess Emeraude. The Pillar of Cephiro is solely responsible for keeping the world alive and balanced through her prayers. Without Princess Emera…