Sakura Kinomoto is your garden-variety ten-year-old fourth grader, until one day, she stumbles upon a mysterious book containing a set of cards. Unfortunately, she has little time to divine what the cards mean because she accidentally stirs up a magical gust of wind and unintentionally scatters the cards all over the world. Suddenly awakened from the book, the Beast of the Seal, Keroberos (nicknamed Kero-chan), tells Sakura that she has released the mystical Clow Cards created by the sorcerer Clow Reed. The Cards are no ordinary playthings. Each of them possesses incredible powers, and because they like acting independently, Clow sealed all the Cards within a book. Now that the Cards are set free, they pose a grave danger upon the world, and it is up to Sakura to prevent the Cards from causing a catastrophe! Appointing Sakura the title of "the Cardcaptor" and granting her the Sealed Key, Keroberos tasks her with finding and recapturing all the Cards. Alongside her best friend Tomoyo Daidouji, and with Kero-chan's guidance, Sakura must learn to balance her new secret duty with the everyday troubles of a young girl involving love, family, and school, all while she takes flight on her magical adventures as Sakura the Cardcaptor. [Written by MAL Rewrite]

With all of the Clow Cards recaptured and changed into her own Sakura Cards, Sakura Kinomoto now enters her first year at Tomoeda Middle School. After her initial day of classes, Sakura reunites with her love Shaoran Li, who informs her that he is permanently moving back to Tomoeda. Much to her surprise, it even turns out that Shaoran will attend the same school and it seems as if Sakura's life is heading in all the right directions. However, when Sakura goes to sleep, she encounters in her dream a mysterious cloaked figure and finds herself surrounded by transparent cards. Waking up in fear, Sakura is shocked to see her dream has come true, with the Sakura Cards having turned clear. Continued dreamlike encounters with the unknown enemy and her gaining a new magical key sets the stage for Cardcaptor Sakura's latest adventure! [Written by MAL Rewrite]

The Yamadas and Chi move to a new apartment house, where keeping a pet is allowed.

Winning the high school team tournament was a great accomplishment for the Mizusawa members. Each of them has made great strides in improving themselves, and the victory symbolizes how far they've come. But after accomplishing one goal, their individual aims are within reach. Chihaya Ayase has her sights set on Wakamiya Shinobu and the title of Queen, and now that Taichi Mashima has made it into Class A, he can finally compete against Arata Wataya. Everyone in Mizusawa wants to get better, and there's no telling what the future holds if they keep trying. [Written by MAL Rewrite]