Season: 1

Sakura's class is on a field trip to the aquarium. During the penguin show, something catches the trainer's leg and a penguin and pulls them into the water, but they are saved by Sakura's brother, Toya, who is working part-time there. At school, Tomoyo gives Sakura and Cerberus mobile phones and on the way home, Sakura bumps into Yukito who invites her on a casual "date" which is at a cafe where Yukito knew Toya was working. While they are eating, The Watery breaks the glass of the aquarium causing a flood. For the first time Sakura has to formulate a plan to capture a card, rather than jumping into battle and attacking with Windy. Using her wits and an unintentional clue from Yukito, she lures Watery into a freezer to immobilizes and capture it.

Tomoyo meets Cerberus after she discovers Sakura's secret and gets a full explanation of the lost Clow Cards and Sakura's designation as Cardcaptor. Cerberus gets given the nickname "Kero-chan" that will stick for the rest of the series. The next day, the students find the school's desks and equipment in large piles. Kero believes it was the work of the card and forces Sakura to go to school at night where she confronts The Shadow. Using the Windy card's binding ability, Sakura is able to capture the Shadow card. Sakura finally accepts her role as a Cardcaptor because of Tomoyo's support.

Sakura Kinomoto awakens from a dream of standing near the Tokyo Tower. She introduces herself, her family, and her friends. After coming home from a normal day at school, Sakura hears a sound coming from the basement. She finds a glowing book and opens it to find a deck of 52 cards. When she accidentally activates the Windy card, the other cards blow out of her house. Cerberus appears from the book and formally appoints Sakura as the "Cardcaptor" and gives her the Sealing Wand. Sakura captures the Fly Card, but she adamantly insists she does not want the job. All the same, she shows quick thinking, considerable magical power, and sheer joy on her first ride on the tamed Fly