Takashi Kurahashi

One day, the Tropical-Rouge Pretty Cure receive an amazing invitation from the Land of Snow, Shantia. They're holding a ceremony to celebrate Sharon becoming the new queen. They all depart to the sparkling world of snow. Laura, who wants to be the queen of the Mermaid Kingdom, befriends Sharon who gives her a beautiful ring. But just as they decide to keep a promise, a mysterious monster suddenly appears and locks everyone inside of the kingdom. When it seems like all hope is lost, the Heartcatch Pretty Cure team rush in and give them all a boost of motivation. And when their feelings become one, the ring transforms into the Snow Heartful Ring...

Various types of ancient creatures suddenly appear in the modern world.

A mysterious girl named Sakura escaped after her fox friend, Shizuku was arrested. When he managed to escape, she fell to the Human World only to be found by Ichika Usami. Sakura says she is from "Sakuragahara", a world based on ancient Japan that is in danger because a mysterious evil figure named Karasu Tengu has taken over and stolen all the beautiful things in her world. She is also looking for Pretty Cure that represents Sweet, Jewels and Keys. Ichika says that she found the KiraKira PreCure team, which represents sweets. As two Karasu Tengu servants arrived in the human world looking for Sakura, the other members of the KiraKira team were ambushed, only to be saved by Maho Girls PreCure! Team, which represented Jewel and Go! Princess PreCure Team, which represents Key. When they gathered together with Sakura, the three teams had to dare Sakuragahara to save Shizuku and free her world from the evil hands of Karasu Tengu.

One day, Mana Aida receives a wedding dress from her mother and grandmother that they had worn in the past. While thinking about who she would wear this beside someday, a mysterious man named Marsh appears, and Mana is thrown back into the past. She was happy to see her grandmother she loved and her old dog Maro, but she then realizes that Alice and Rikka aren't there because memories have been altered. In order to save precious memories, the future, dreams and hope, Mana transforms into Cure Heart.