The film revolves around the students of the Yotsusei Gakuen traveling to a southern island in search for the "Legendary Dress."
One day, Mana Aida receives a wedding dress from her mother and grandmother that they had worn in the past. While thinking about who she would wear this beside someday, a mysterious man named Marsh appears, and Mana is thrown back into the past. She was happy to see her grandmother she loved and her old dog Maro, but she then realizes that Alice and Rikka aren't there...
The story of the anime revolves around Ichigo, who was just a normal middle school student until she suddenly got involved in the world of idols. The film will center on Aikatsu!'s greatest "Super Live" concert yet, the Dai Star Miya Ichigo Matsuri. Ichigo prepares for the concert with press conferences, last-minute lessons, and more.
Five bands all have their sights set on stardom as they take the stage in the series first theatrical anime.
