Mirai is a 13-year-old girl living in the human world. One day, she witnesses a mysterious object falling from the sky into a park. Excited, she brings her stuffed bear, Mofurun, along to investigate. Upon arrival, she sees a girl named Riko flying on a broom. Riko is the same age and hails from the magical world. Mirai has many questions, and Riko explains that she is searching for a powerful jewel called the "Link Stone Emerald." Then Batti, an ally of the dark magic users Dokurokushi, appears before them and demands that Riko hand over the "Link Stone Emerald," which Riko herself had been seeking. To make matters worse, Batti uses dark magic to create a monster known as a Yokubaru! Mirai and Riko join hands, and with the magic words "Cure-up Rapapa!" they transform into the legendary Pretty Cure.