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.
生天目仁美
as Mana Aida / Cure Heart (voice)
寿美菜子
as Rikka Hishikawa / Cure Diamond (voice)
渕上舞
as Alice Yotsuba / Cure Rosetta (voice)
宮本佳那子
as Makoto Kenzaki / Cure Sword (voice)
釘宮理恵
as Aguri Madoka / Cure Ace (voice)
大橋彩香
as Lance
杉山佳寿子
as Bebell, Isuzu Bandou
西原久美子
as Sharuru
池田勝
as Clarinette
浅野まゆみ
as Mannequin Carmine
稲葉実
as Silver Clock
谷原章介
as Marsh
