Mirai Asahina, a 13-year-old girl who's going into her second year of middle school, witnesses a mysterious object fall in to the park. Excitedly, she brings her stuffed bear Mofurun with her to see what it was. When she gets there she sees a girl named Riko flying on a broom. Mirai has a lot of questions, and Riko explains that she's searching for something. The two of them are wearing similar pendants. Then Batti, an ally of the dark magic user Dokurokushi, appears before them and demands the "Link Stone Emerald." Batti creates a monster called a "Yokubaru" and drives them into a corner. Mirai, Riko, and Mofurun join hands and speak the magic words "Cure-Up Rapapa," their pendants glow, and they become the legendary Precure.
(Source: Anime News Network)
— Description from AniList community (anilist.co).
