Nozomi Yumehara, an ordinary student, discovers a magical tome titled the Dream Collet in the library and encounters Coco and Nuts, two beings from the Palmier Kingdom. They beg Nozomi to save their world, which was devastated by an entity known as the Nightmares, by completing the Dream Collet and locating the 55 Pinkies to grant any wish. Meanwhile, the Nightmares are encroaching upon the real world. After Nozomi consents to assist, Coco and Nuts transform her into the magical girl Cure Dream and convert four classmates into her Pretty Cure team.