Aida Mana is a girl who is always eager to do things for the sake of others. 
One day, when she was visiting the Clover Tower during her school's orientation program, an enemy who called themselves "Selfish" appeared suddenly, and tried to manipulate her inner heart! To fight this enemy, she borrowed power from a magical fairy Sharuru to transform into Pretty Cure! 
To protect the peace of the world, other legendary Pretty Cure soon joined her in battle! A mysterious baby also appears, making each day a "Heartthrob" experience! The 4 Cures, always holding "love" in their hearts, are battling for the world's fate! 
(Source: Asahi TV)

Mana is given a wedding dress which was worn by her mother and grandmother. 
All of sudden a mysterious man named Matthew appears and takes her to the past world. 
Mana is so glad to meet her grandmother and her beloved dog Maro that she had a long time ago, but she can't find two of her best friends Rikka and Alice. It looks her precious memories have been changed somehow. 
If things continue as is, the future will be ruined, too. 
The Precure girls have to fight to protect their memories and future!! 
(Source: Crunchyroll)

Tsubasa Momota