It is three years since the legendary Prism Queen Cup, and Aira Harune, Rizumu Amamiya, and Mion Takamine have risen to become celebrated Prism Stars, dazzling audiences with the sparkle of Prism Shows wherever they appear. Yet a new test arrives in the form of an energetic and spirited girl, Mia Ageha, who has openly vowed to topple Aira and claim the title of supreme Prism Star. Recognizing her talent, the Pretty Top agency signs Mia together with three other hopeful Prism Stars—Karin Shijimi, Reina Miyama, and Ayami Ooruri—to create the idol unit Prizmmy. The path to stardom, however, proves treacherous: Mia must confront a former friend who reappears as her competitor and navigate the seductive yet scheming realm of Prism Shows. Still, with companions and teammates beside her, Mia"s resolve hardens as she strides forward to shape her destiny. Their journey is marked by fierce competitions, unexpected alliances, and the relentless pursuit of perfection.