This is a TV series called "Candy Crush", based on the popular mobile game. The show follows Tiffi (short for Toffette) and her pet Easter Bunny who solve problems plaguing the residents of the Candy Kingdom.
Throughout each episode, Tiffi and Easter complete levels by swapping colored pieces of candy to make a match of three or more of the same color, eliminating those candies and replacing them with new ones, which could potentially create further matches. Matches of four or more candies create unique candies that act as power-ups with larger clearing abilities. Levels have various goals that must be completed within a fixed number of moves, such as collecting a specific number of a type of candy.
