"My name is Sakura and I'm in the fourth grade. My favorite subject is P.E., and I hate math. One day I found this really cool old book in my dad's library (he's an archaeology professor) and when I opened it, a bunch of cards flew out and disappeared. That's when I met Kerberos, the Guardian Beast. He explained that they were Clow cards--magical creatures who take the form of cards. With the Clow Cards on the loolse, terrible things could happen. It's up to me, Kerberos, and my friends Madison and Li to bring them all back. We are the Cardcaptors!"