Small-town girl Haruka Amami is elated when she passes her audition for a big role in Tokyo… but her big break isn’t exactly what she expects.
After the giant rogue IDOL is defeated by Makoto, Haruka is given an offer she can’t refuse: to become an IDOLMaster. Her friend Yayoi is convinced that the organization is swindling her, and leads her on a wild goose-chase trying to track down the truth.
Haruka begins to settle into her new life, attending classes at the high school that is a cover for the Mondenkind IDOL organization.
Iori has failed to destroy a meteorite, merely splitting it in half so that there are now two targets to destroy. When Haruka saves the day, it only exacerbates Iori’s rivalry with her.
After Yukiho and Haruka fail an exam, a retest is planned by Asuza that stresses them both out. When their studies don’t go very well, an annoyed Iori steps up to coach them.
Haruka is deployed to handle two Lemon-class meteorites, but the targets suddenly disappear – only for more bogeys to suddenly show up on Mondenkind’s sensors.
Chihaya is determined to get the Imber back, even if it costs Haruka her life. While Mondenkind deals with the crisis, Haruka winds up in the infirmary, having lost consciousness.
Haruka and the others are at the beach, but this is no vacation – they are performing activation tests and pilot training for Imber and other IDOLs in the same town where Imber and Nebula were manufacatured.
The girls are sent to find an idol, Ami Futami, who used to be a mechanic for Mondenkind, and ask her to come back as a consultant.