Three years have passed since the renowned Prism Queen Cup, with Aira Harune, Rizumu Amamiya, and Mion Takamine now established as celebrated Prism Stars, enchanting audiences with their dazzling Prism Shows. Their world is shaken by the spirited Mia Ageha, determined to surpass Aira and claim the title of the ultimate Prism Star. Recognizing Mia's talent, the Prism Show agency Pretty Top enlists her, alongside Karin Shijimi, Reina Miyama, and Ayami Ooruri, to create the idol group Prizmmy. Despite the allure of fame, Mia must confront the unexpected return of an old friend turned rival and navigate the cutthroat realm of Prism Shows. With unwavering support from her friends and team, Mia is determined to blaze a trail towards her dream.