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...
ファイルーズあい
as Manatsu Natsuumi / Cure Summer (voice)
花守ゆみり
as Sango Suzumura / Cure Coral (voice)
石川由依
as Minori Ichinose / Cure Papaya (voice)
瀬戸麻沙美
as Asuka Takizawa / Cure Flamingo (voice)
日高里菜
as Laura / Cure La Mer (voice)
水樹奈々
as Tsubomi Hanasaki / Cure Blossom (voice)
水沢史絵
as Erika Kurumi / Cure Marine (voice)
桑島法子
as Itsuki Myoudouin / Cure Sunshine (voice)
久川綾
as Yuri Tsukikage / Cure Moonlight (voice)
松本まりか
as Sharon (voice)
田中あいみ
as Kururun (voice)
川田妙子
as Shypre (voice)
