Source take from Wikipedia.org
Magic Knight Rayearth is a Japanese manga series created by Clamp, a mangaka team made up by Satsuki Igarashi, Ageha Ohkawa, Tsubaki Nekoi and Mokona. Rayearth combines elements from the magical girl and mecha anime genres with parallel world fantasy.
Hikaru Shidou, Umi Ryuuzaki, Fuu Hououji are on a field trip to the Tokyo Tower with their respective schools. The girls are blinded by a flash of light and hear a voice calling for the Legendary Magic Knights to save Cephiro. They fall through the sky into another world, Cephiro. Once there, they meet Master Mage Clef. Clef explains, "[In Cephiro], one's will has the ability to change reality for better or worse. The dark fears in people's hearts become monsters, while a well-intended wish can do miracles. One person, the Pillar, whose will is stronger than anyone else's, is responsible for maintaining through her prayers the well-being of Cephiro."
