相田 愛（Aida Mana）在老師的信賴下，成為了大貝第一中學學生會會長。在一次社會科的戶外活動，她和同學來到地標建築四葉塔（Clover Tower）參觀，一路上忙著照顧眾人。就在她終於可以停下來，期待展望台的景色時，巨大的怪物「自私怪」突然出現，引起了不小的騒動。不甘旁人被傷害的相田，遇上了撲克牌王國的精靈夏露露（Charles），倚靠不可思議的飾物能量，變身成為光之美少女－－愛心天使。隨後其青梅竹馬菱川 六花（Hishikawa Rikka）和小學玩伴四葉 愛麗絲（Yotsuba Alice）亦加入光之美少女的行列，誓要一同要把失去「愛」的怪物徹底淨化。

一名青少女接受換心手術後，卻被怪誕的異象與不祥的衝動纏擾，於是試著查出捐贈者神秘死亡的真相。

Plim Plim, Hero´s heart, is an Argentine animated television series created by Que Lindo Entertaiment and Smilehood, broadcast on Disney Junior for all Latin America. The pre-release was aired on September 21, 2011 and was officially launched on October 1 of the same year. This animated series consists of 7-minute-long episodes and its main goal is to promote human values such as solidarity, honesty, responsibility, early habits and respect for the environment. This series is inspired from and based on the teachings of Sri Sri Ravi Shankar the founder of Art of Living Foundation.