As the girls anticipate their audition for a drama called Naughty Detectives, they also find themselves against fellow schoolmate Shion Kamiya. As the girls are informed of two roles to audition for, Shion cuts her hair short to try for a boyish detective role. As Aoi starts to become nervous, Orihime gives her and Ichigo some words of advice.

The gang decide to go undercover so they can watch Ichigo and Otome's movie in a normal movie theater.

Orihime and Tiara announce the beginning of the Aikatsu8 Elections, in which fans will show their support for their favorite idols, and the eight most popular idols will form a special unit known as Aikatsu8. They declare that the Elections are not limited to idols from Starlight and DreAca, so Mizuki and Mikuru from WM are eligible to participate.

As part of her role as the Pon Pon Crepe Girl, Akari needs to come up with a pose for a promotional poster. With help from Hinaki, Akari manages to come up with a variety of poses, but also notices Hinaki seems to be downhearted about something.

With a week until Christmas, Sakura is put in charge of preparations for the Christmas Party, which includes a special Aikatsu Christmas Stage. Aiming to audition for the stage alongside Akari and Sumire, Hinaki decides she needs to get a Vivid Kiss Premium Dress so she can perform a Heroine Appeal.

Soleil announce they will be launching a half-year long nationwide tour in the spring, setting up a project room at Starlight Academy to plan the tour.

Akari Ōzora's previous roommate, Yū Hattori has gained popularity through being a "Travelling Idol"! Now, Yū and Akari's unit Luminas are heading for Kyoto at the same time. The TV program in Kyoto that Yū was planning to attend turns out to have also invited Luminas. The reason behind the brilliance of Yū right now is thanks to a promise made between her and Akari.

Rin and Madoka decide to respectively help Sumire and Akari train for their performance, while Hinaki speaks with Juri before receiving some flowers from Mikuru. As the final day of the Starlight Queen Cup begins, Hinaki is the first to perform, managing to overtake Juri in the rankings. During her performance, Sumire attempts a Special A-Rank Fever Appeal but fails to land it successfully.