Still navigating the unfamiliar halls of her new high school, Kasumi Toyama stumbles upon a path of stars. It winds unexpectedly to a dusty, forgotten thrift store. Within its cluttered aisles, she finds something remarkable.

Kasumi yearned to form a band, a dream met with staunch opposition from Arisa. Determined to avoid her friend, Arisa took the step of auctioning off Kasumi’s cherished, star-shaped guitar.

Kasumi extended an invitation to Rimi, hoping she would join the band, but Rimi hesitated. At the same time, Glitter*Green encountered a problem en route to their performance.

Kasumi began lingering after school for guitar lessons with Tae. A subtle unease seemed to settle over Arisa as their shared time increased.

Kasumi, Tae, and their companions are making final preparations for their debut. Will they manage to be ready for the curtain to rise?

As academic pressures mount, Kasumi finds herself increasingly overwhelmed and seeks guidance from Saya. Separately, Arisa dedicates herself to the pursuit of an ideal name for her band.

Convincing Saya to join Poppin' Party presents Kasumi with a considerable challenge. Will she succeed? In the meantime, preparations for the Culture Festival proceed apace.

With preparations complete, the Cultural Festival is ready to commence. Simultaneously, Poppin' Party are set to perform their inaugural show. The question now is: how will it fare?

With the arrival of a new drum set, Saya found that all the girls were now employed at Space. There, they gained firsthand understanding of the intricate work required to produce a live performance.

Auditions for the Poppin' Party are held at Space, but securing a place to perform hinges on impressing the owner. Will they succeed in realizing their aspirations?

Kasumi grapples with finding her own distinct expression, yet her fellow Poppin' Party members offer unwavering support, always ready to lift her spirits.

Poppin' Party has been granted another opportunity to perform at Space. Will they finally earn the owner’s approval?

The culmination of years of striving arrives for Kasumi as Poppin' Party prepares for their final performance at Space. The question lingers: how will they present themselves on this momentous occasion?