Thanks to Sharuru, a fairy from the Trump Kingdom, and the power of mysterious accessories called Cure Lovies, Mana transforms into Cure Heart! Mana, her close friend Rikka, her high-class childhood friend Alice, and the enigmatic, cool super idol singer Makoto all become legendary saviors. Together, they purify the Jikochu, who have forgotten about love!

The series follows Kang Yi Kyung, a woman whose father is a murderer. She must deal with tough times and also plot her revenge. To fulfill her revenge, she assumes another woman identity and comeback as Seo Jung Ha.