Yume Nijino aims to become a top idol, and she enrolls in the Yotsuboshi Gakuen (Four Stars Academy). This academy has a special group called the S4, who are the top four active idols in the school. Yume and the other first-year students aim to become a part of the S4.

With the intention of appearing in an event on a southern island, the students of Four Star Academy are taking off! There, rumors about a pair of legendary dresses sleeping within the island... A story about Yume and Laura's friendship, with S4 taking the stage together for the first time. Furthermore, putting the legendary dresses into a Dress Make... A thrilling and exciting Aikatsu! story is coming to theaters this summer!

An Aikatsu! All-Star awards ceremony will take place. The film will feature songs and stages featured throughout the anime series.