 CardCaptors is the American version of the Japanese anime Card Captor Sakura. The main characters are Sakura Avalon and Li Showron, who, assisted by Keroberos (Kero), and Sakura s best friend Madison, try to capture the escaped Clow cards, and return them to the mystical book that holds them, the Clow. Also on hand are Sakura s older brother, Tori, and father, Aiden, Tori s best friend, Julian, Li s cousin, Meilin, and various classmates and friends of Sakura and Li.