A special episode aired after ep. 490, it summarizes the history of confrontation with the black organization.

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.

(Source: ANN)

The One Year War comes to a close, as the Zeon forces now retreat back into space. Amuro learns much more of his Newtype abilities and tries to use them the best way he can. He's pushed to his limit as he encounters the infamous Char Aznable once again. He also falls in love with a mysterious woman named Lalah Sune, who knows the full potential of the Newtype abilities. The greatest battle is about to begin, as many loved ones fall to the power of war. Can the Earth Federation defeat the Principality of Zeon? Or will they fail? Can Char prove that he's the better Newtype than Amuro? They all will be answered now...

Sakura travels to the capital with aspirations of defending the city from the demonic forces of the Black Sanctum Council like her father before her. However, things are not as she imagined as in addition to using her great spiritual energy to pilot a mech called a Kobu, she must also perform on stage as an actor as The Imperial Flower Division's cover is an art theater. Making a fool of herself and ruining a production gets her on everyone's bad side and somehow she must learn to work with them as well as prevent the enemy from destroying several shrines which protect the city.