The best Ayakagi dancers are selected from the first three series of "Rainbow Dream", "Dear My Future" and "Rainbow Live". The main characters appearing are Aira, Mia and Naru. They pass on important lessons and insights from their own experiences to the new character "Lala" of this season, so that Lala can debut as an idol of "PuRiPaRa" in the summer. In the end, how many shining lessons will the new idol Lala learn from the strict selection? Let's wait and see.