Sakura Kinomoto is the main protagonist of the anime series 'Cardcaptor Sakura.' She is a cheerful and energetic fourth-grade student who discovers she possesses magical powers after accidentally releasing a set of magical cards known as the Clow Cards. Tasked with retrieving these cards, Sakura becomes a 'Cardcaptor' and must capture each card to prevent chaos from ensuing. With the help of her friends and the guardian beast Keroberos, Sakura navigates the challenges of her new role while growing in confidence and mastery of her powers throughout the series.