The Trump Kingdom is a magical world where everyone's hearts live happily with the guidance of their ruler Princess Marie Ange. However one day, a evil force known as the Jikochū attacked the Kingdom. But a warrior who served Marie Ange, known as Cure Sword, fended the Jikochū by herself before being sent the human world with her fairy partner to find the missing princess. The Cure Sword also brought with her three other fairies who are to find three chosen girls to be her allies.... more>>

One of the fairies, Sharuru, finds a girl named Mana Aida who is her school's student council president. Whilst visiting the Clover Tower's observatory during her school's orientation day, Mana encounters a Jikochū who attempts to manipulate her heart but being found by Sharuru as she gives her the power to become Cure Heart. Joined by Cure Diamond, Cure Rosetta and Cure Sword, the Dokidoki PreCure must fight to protect everyone's hearts from the Jikochou. <<less

14-year-old Ichika Usami loves sweets and wishes to become a patissiere. When she encounters fairy Pekorin, she is able to transform into Cure Whip to... more>> protect Kirakiraru, an energy that represents the feelings put into making a sweet, from the Kirakiraru Thieves. She is later joined by four other girls. <<less

Mirai is a 13-year-old girl who lives in the human world. One day she witnesses a mysterious object fall from the sky into 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. Riko is of the same age and from the magical world. Mirai has a lot of questions, and Riko explains that she's searching for a jewel with strong powers called "Link Stone Emerald."... more>>

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 looking for. To make things 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. <<less