Miyuki Hoshizora, a teenager enamored with fairy tales and their promise of joy, faces a fateful encounter on her first day at a new school. Meeting Candy, a fairy from Märchenland, she is thrust into a world beyond her wildest dreams. As she delves into the quest for the legendary warriors, Precure, Miyuki transforms into Cure Happy to safeguard happiness and unravel the mysteries of her newfound role. Her journey intertwines fate, friendship, and the pursuit of a happy ending amidst the looming threat of destruction.