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!

The summer fest is here at last. All of the project members are nervous about performing on the grand stage, but their rehearsals go smoothly thanks to Minami's leadership. But then Minami collapses from accumulated stress. Ranko does an emergency fill in for Minami with Love Laika and somehow, the rest of the Cinderella Project's performances go off without a hitch... until a sudden downpour causes the rest of the concert to be canceled!

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!?

With the fall fest finished, the Cinderella Project members have ascended another stair. But when Uzuki suffers a crisis of confidence, she tells Producer that she wants to go back to the basics and subsequently returns to training school. Feeling that something is off, Producer frequently visits Uzuki at the school to keep an eye on her, but she sticks to her usual line of "I'll do my best." Producer doesn't think Uzuki is heading in the right direction, so he sets up a Christmas concert for New Generations and entreats her to re-enter the fold there. However, Uzuki doesn't show any enthusiasm for the plan.

When Producer tells Rin and Mio about Uzuki's condition, they become anxious and go to the training school to see how she really feels. They find that Uzuki has lost her former dazzling smile...