It’s hard to reach for the stars when you don’t know what inspires you, but thanks to a chance meeting between Kasumi and a star-shaped guitar, she finally understands her true calling! Kasumi becomes determined to form an all-girl band, and her search leads her to Saya, Arisa, Rimi, and Tae. Featuring live performances by the band Poppin’ Party, Kasumi (played by the band’s lead singer, Aimi), prepares to take the stage and make her dreams of stardom come true, no matter the obstacles.
One day, as she’s still adjusting to her new high school, Kasumi Toyama discovers a trail of stars that leads her to an old thrift store. Inside, she makes a discovery.
Kasumi's heart is set on forming a band, but Arisa wants nothing do with it. In fact, Arisa is so determined to avoid her that she puts the star-shaped guitar up for auction.
Kasumi asks Rimi to join her band, but Rimi is reluctant. Meanwhile, Glitter*Green runs into an issue on the way to their show.
Kasumi starts staying after school to take guitar lessons from Tae. Meanwhile, Arisa seems to have a problem with all the time they are spending together.
Kasumi, Tae, and friends are preparing for their first performance. Are they going to be ready in time?