Cardcaptor Sakura starts when Sakura Kinomoto, 4th Grader, accidentally releases a set of magical cards.
Every card has its individual character and traits and be able adopt rotating forms when activated.Kero, her keeper, arises from the book and tells her it is nowadays her obligation to recover the lost cards. As she finds each card, she fights its magical personification and defeats it in order to seal it off. Kero acts like her guide, while her best friend Tomoyo Daidouji videos her use and supply with costumes.