In the far away Sherbet Kingdom the Royals are attacked by the super group Toxic, who are after the royalty's power so they can rule every world including Earth. Peachu, Macaroon and Pie escaped the Kingdom before the attack began in search of the SugarSweet Precure girls. Their father is captured by the group and they have no idea what his fate will be. This is why the Royal children turned to the SugarSweet Precure girls as they are the most powerful heroines in the world.

Momoka Hoshino is a happy-go-lucky cat lover who loves her friends and will do anything for them even in dire situations. Once she became a Precure she entered a world that she never knew was possible in real life she thought it only happened in her manga.

Now Momoka as Cure Crepe must fight along with Cure Soda, Cure Caramel, Cure Torte and Cure Sorbet against Toxic to restore the Kingdom of Sherbet and free the King from Toxic's evil clutches.