Cornelia just moved to a new town with her mom and dad, leaving behind her wonderful grandma-and she's feeling a bit nervous about all the changes. To help her, Grandma gave Cornelia a special hat with a magical unicorn named Uni! With Uni by her side, Cornelia discovers she has a new friend to help her feel brave, especially on her first day at a brand-new school. Uni's magic helps Cornelia face her worries, make friends, and find courage in every new adventure.