Utsuki, Rin and Mio start taking lessons to train to be Mika’s back dancers. It’s a long, hard struggle, but thanks to the encouragement of the other project members, they somehow make it. But the pressure of being on stage for the first time has stressed the trio out so much that even the final rehearsal doesn’t go well. Will they be able to get it together for the actual concert?

Miku Maekawa and Riina Tada are going to make their debut as the Cinderella Project's final unit. However, Miku aims to be a cute, cat-eared idol, while Riina's goal is to become a cool rock idol. The two are like oil and water, and both are strongly opposed to the unit idea. But when their participation in the units-only summer festival is on the line, they make an effort to get on the same wavelength, starting with becoming roommates!

In order to keep the Cinderella Project going and the "Cinderella's Ball" project a success, Producer and the idols feel they have to both up their game and increase their name recognition. With the cooperation of other departments, they start a new TV variety show called "Totokira Academy," and Dekoration become regulars on the program.

Meanwhile, Executive Director Mishiro is after Mika to change her image. Though Mika doesn't like it, she thinks of her department and younger colleagues and does her best. But on the set of Totokira Academy, Rika doesn't like how Mika is being asked to change her image, and the two sisters get into a fight. When Miria is depressed too, Kirari and the other idols worry about both of their own. At this rate, can the TV show be a success!?

Anastasia is positive and determined about participating in Project Krone. But then Mio suddenly announces she's going solo. Meanwhile Rin still can't decide whether to take part in Triad Primus. Amidst all these changes, they strive to find their own paths.

Under the circumstances, it seems like all the previous units and projects will be disbanded, which causes the Cinderella Project members no end of anxiety and upset. The idols decide to band together to make the fall fest a success, but can they?