The movie transports the Precure into a world inside a picture book, where they are guided by Nico, a mysterious inhabitant of the picture book world.

In the city of Minato Mirai in Yokohama, the news of Fusion's defeat by the Pretty Cures is the hottest topic in town! Girls everywhere are dressing up and acting as their favorite Cures. Only Sakagami Ayumi, the new transfer student, is alone by herself. On her way home from school, Ayumi encounters a strange creature. After naming it Fu-Chan, Ayumi and the creature soon become good friends. However, Fu-Chan is actually a piece of Fusion, and holds the power of darkness. In an effort to make Ayumi happy, Fu-chan swallows up everything that Ayumi dislikes, creating chaos in school and throughout the city! To help bring across Ayumi's true feelings to Fu-Chan, all 28 Pretty Cures gather once more. When everyone's power comes together, a miraculous light starts to shine.

Marina, the most beautiful mermaid in the royal Merman family, is curious about the human world. One day, she sees a handsome prince on a boat. Suddenly, a storm comes up, throwing him into the sea. Marina saves her handsome prince and guides him to the shore. Marina falls deeply in love and desperately wants to become a human. Despite the hazards, she is willing to risk it all for love. (Source: ANN)

The second series is to follow the events of the second video game, focusing on the lost continent of Mu. The ancient civilization vanished ages ago, and a few of its remnants still exist as myths and legends called UMAs (unidentified lifeforms). The UMAs begin merging with humans in order to search for the treasures of Mu, the powerful ooparts, which will give them the power to revive Mu. After Subaru and War-Rock encounter several unusual enemies, they meet a professor named Doctor Orihime who sends them on a quest to find the ooparts and stop the UMAs. Using the ooparts, Rockman is able to take new forms, including Thunder Berserk, Fire Dinosaur, and Green Shinobi. (Source: Wikipedia)