Cardcaptor Sakura takes place in the fictional city of Tomoeda. Ten-year-old Sakura Kinomoto accidentally releases a set of magical cards known as Clow Cards from a book created and named after the sorcerer Clow Reed. Each card has its own unique ability and can assume an alternate form when activated. The guardian of the cards, Cerberus, emerges from the book and chooses Sakura to retrieve the missing cards. As she finds each card, she battles its magical personification..