With all the people being born on earth, the Sun and the Moon are having a hard time looking over mankind. They chose 50 humans who will attend Zodiac High. In Zodiac High, you can chose from three classes. Alchemy/Witchcraft, Self Defense/Weaponry, and Piloting/Technology. From the 50 people attending the school, the teachers of Zodiac High will cut 4 people every few months, leaving the final 12 as the Guardians of the Earth. The Sun and Moon call this Project Zodiac, but to everyone else, it's Living Zodiacs