After Sumire and Rin name their new unit Dancing Diva, they are approached by the same shampoo company who approached Sumire before, who want to use their song for their next commercial. The girls soon begin a hectic schedule, with Sumire giving Rin plenty of advice for her recording and vice versa. Later, Sumire helps out some more as an autograph session proves more popular than expected. On the night before their promotional concert, Sumire comes to understand that the full magic of a unit comes from shining alongside your partner. As Dancing Diva makes a great impression with their first true concert, Juri wonders who her partner will be.