Who is in the pumpkin carriage?

Uzuki Shimamura is an ordinary girl who dreams of being an idol, so she goes to a special training school. One day, a producer for 346 Production shows up with the news that she’s one of three girls chosen for the Cinderella Project, even though she didn’t pass the audition the first time around. Uzuki is thrilled, but the project can’t start until the other two members are picked... The producer scouts Rin Shibuya, who he has in mind for the second opening. However, Rin isn’t interested in becoming an idol and turns him down flat...