Precure All Stars: Haru no Carnival♪

One day, the Pretty Cures receive an invitation to a party in their honor. Everyone is heading to the party venue, the school of fairies, but awaits a mysterious shadow. The shadow steals transformation objects! What can they do? If the Cures can not be converted are in big trouble! If this continues, the school, our world and everything else will deborado by that shadow! The 32 Pretty Cures will fight to protect everyone!

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.

Haruka Haruno is a first-year student at Noble Academy who dreams of becoming a princess, just like the one from her favorite picture book. Long ago, she made a promise with a boy named Kanata to never give up the dream, and he gifted her a dress-shaped key. On her first day at the academy, Haruka runs into the fairies Pafu and Aroma who came from the mystical Hope Kingdom in search of the Princess Precures to save their world from the dark witch Dyspear. Now, with the help of Princess Perfume and the Dress Up Key from Hope Kingdom's Prince Kanata, Haruka transforms into Cure Flora to protect everyone's dreams from being locked away by Dys Dark's minions. With her friends Cure Mermaid and Cure Twinkle by her side, the three princesses join forces in battle to protect dreams, collect the 12 Dress Up Keys, and stop Dyspear's plot to turn everyone to despair.

The story begins when Hana, Saaya, and Homare from Hugtto! PreCure take Hagutan out for her flower garden debut. All of a sudden, the monster Usobaakka appears. He attempts to change the world into the one filled with lies and kidnaps Saaya and Homare. Hana learns the girls of Maho Girls PreCure! and Kirakira PreCure a la Mode are also his targets and decides to support them. During the battle, Hana remembers one unfulfilled promise from Usobaakka's word "Promises are lies that can't be kept by anyone." It was Hana's very important promise with a boy named Clover, whom she met in a strange world in her childhood. She gradually realizes the promise is the beginning of this big trouble. In cooperation with the PreCure girls in three generations, will Hana be able to beat the strongest enemy Usobaakka and fulfill the promise with Clover?