THE iDOLM@STER Cinderella Girls - Season 1 Episode 5 I don't want to become a wallflower
Overview: Two units are going to make their debut, one with Uzuki, Rin and Mio, the other with Minami and Anastasia. They all become busy with lessons to prepare for their mini-concert debut. However, Miku's frustrations boil over dangerously when her own debut can't be seen on the horizon.