From Tokyopop: Sakura Kinomoto was just an average student of the fourth grade, she loved the physical culture, hated mathematics - while once, searched by the library of his father, Sakura did not find Clow, enchanted a book designed to store the Magic CLOU card game. But when Sakura opened the book, she was empty. ¡Talk about catastrophes !! Keroberos, the creature of the press, jumped out of the cover of the book and informed Sakura that letters should be returned to the book. "If there are no cards in the book, they come to life and make evil!" Kero signed a contract with Sakura, turning it into Cardcaptor, and together with the best friend Sakura Tomoo they go to a mystical journey to capture all CLOU cards before maps can cause chaos and destruction.