Nina's parents come to visit her from her hometown as she continues to dedicate herself to the band. Nina runs away, but she reluctantly returns to her home after everyone convinces her. She tries to talk to her father, but as always, he doesn't see things from her perspective. The next day, her father takes her to her old high school.

Nina and the others arrive at an outdoor music festival. It's a huge venue, and the large stage gets them pumped. Diamond Dust takes the stage and they've gotten better since their last show. Nina and the band absolutely cannot lose. They're going to leave their mark. It's the start of their performance of a lifetime.

Nina and the others officially sign with a talent agency. The five of them start writing their new song when Diamond Dust challenges them to a battle of the bands. Diamond Dust has doubled their follower count from before. Should they accept the challenge or not? The members find themselves split on this decision.

In the battle of the bands against Diamond Dust, Nina's band's ticket sales have not even reached half of their sales projection. Meanwhile, Diamond Dust sold out their tickets. The harsh reality comes crashing down. Even then, Nina and the band stay true themselves and begin to play their song.