Aikatsu! Memorial Stage: Kagayaki no Unit Cup is a compilation film released in 2025 as part of the 10th-anniversary celebrations for the Akari Generation of the Aikatsu! television anime series. The movie is a theatrical re-edit of the popular Unit Cup arc from the series third season, presenting a condensed and cinematic version of the story. The film also includes a simultaneous screening of the Aikatsu Restaurant episode, a piece of original video footage that features characters from the Akari generation in a play-within-a-play format.

The primary setting for the main narrative is the middle school division of Starlight Academy, the prestigious training ground for young idols. The story revolves around the announcement and subsequent execution of a special competition called the Unit Cup. For this event, eight different two-member units are formed to compete against one another, showcasing their talents and the unique chemistry of their new partnerships. A notable aspect of this competition is a special segment where the idols are tasked with reporting on each other's behind-the-scenes personalities, offering a glimpse into their private lives and adding a layer of personal interaction to the professional rivalry.

The film centers on the idols of the Akari generation. The protagonist, Akari Ozora, originally a member of the unit Luminous with Sumire Hikami and Hinaki Shinjo, forms a new unit named Skips with her junior, Madoka Amahane, for the Unit Cup. Other participating idols include Sumire Hikami, Hinaki Shinjo, Juri Kurebayashi, Rin Kurosawa, Miyabi Fujiwara, and Kokone Kurisu. The narrative arc follows these eight units as they prepare for and compete in the Unit Cup, with a focus on the intense and passionate clashes between the idols as they strive to demonstrate their growth and the power of their new collaborative bonds. The film is designed as a celebratory piece, highlighting key performances and memorable moments from this specific story arc.