The first episode starts in the days prior to summer vacation. Natsumi and Saki are in the tennis club and are supposed to meet for practice. But Saki does not seem to care and has a fight with Natsumi because of it. The girls and the whole class later learn that Saki is moving to Tokio. The episode ends with the four girls meeting behind a (Shinto) shrine. There they remember how four years ago they put their hands on a big rock and wished to become idols. Yuka and Rinko planned this reunion to rekindle old feelings, but it ends in a fight. In the midst of all this Rinko wishes that she could fly. Then, the girls are suddenly propelled into the air and float for some moments.
So far the series appears to have potential to be good. Looking at the setting, a better version of Kamichu! would be nice. Now, I will just wait for a week to watch the next episode.