Elder from the Garden of Light has called Misumi Nagisa and Yukishiro Honoka over to tell them the Evil King has stolen the Power of Dreams from the Garden of Dreams. Since this is the source of people's dreams, it's essential to take it back to where it belongs right away. While the Power was being transported, an accident broke it into many pieces. The girls are tasked with getting these fragments, which take the shape of hearts, back from five different worlds.