Wakaba is nearing debut, but first she must find something essential about being an idol.

The severe cold of the Sorbet Kingdom has stolen even the people's smiles……. As the princess, Alicia felt responsible. When the knight commander who has sensed Alicia's thoughts prohibits Aikatsu!, a surprising situation where performances can't be done arises!? For Alicia, who has shut herself in, exactly what are her feelings?

The people of the Sorbet Kingdom deeply love Alicia. After discovering Alicia doesn't want to do Aikatsu!, they begin to avoid Aikatsu! At Mirai's suggestion, Aine and the others start to play a "certain game". It's something that will make your heart sparkle and excited...

Aine and the others have arrived at the Sorbet Kingdom. They immediately head to the castle to meet with Charlotte and on the way encounter with Alicia's younger brother Charles. They are led by him to meet with Alicia, after which Hibiki invites Alicia to reform their Friends unit.

In order to convince Alicia, Aine and Mio go to Sorbet Kingdom along with Hibiki. "Time difference?" "Passport?" What is the secret item to survive in Sorbet Kingdom, a snowy country? Because of the first time of Aine go to overseas, she begin preparing in slapstick!

Ema and Maika who came to the depths of the mountain to find unpolished jewel accidentally meet with Sakuya and Kaguya. With the guidance of the mysterious stone found there, will the four of them be setting up new Friends!?

A newcomer idol, Wakaba is told to serve Aine as her "one day assistant". At the same time, an unpolished jewel appears before Aine......! Aine wants to show to Wakaba how senior she was, but she works hard with an "adult-like behavior" different from usual?

Hibiki is given an offer to appear on a talk program with each Friends unit. As an Aikatsu artist, Hibiki will arrange the program in a "show"-like fashion. Being tested on the show are the bonds of each Friends! During that time, what is the unexpected harvest that Hibiki has acquired...

Mio is searching for a method to make Pure Palette shine more than ever. At that time, Hibiki gets everyone to challenge Spa-Katsu. Spa-Katsu was harder than everyone could have imagined, it was a tough battle! Following that, it was revealed that the Friends group that Hibiki was previously in was!?

Now a high school student, Aine is looking forward to her new life with excitment filled inside her chest. And during that time, Aine and Mio encounter the idol who has been doing Space Aikatsu・Hibiki Tenshō arrives from outer space! Aine and Mio who were at Hibiki's stage witnesses a never-seen-before radiance from the dress!