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.

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, Tae, and friends are preparing for their first performance. Are they going to be ready in time?

Saya gets a new drum set and the girls all get jobs at Space! They learn what goes into putting on a live show.

Poppin' Party auditions at Space but to play there you must impress the owner. Do they achieve their dream?

Kasumi begins to struggle in school and enlists Saya's help. Meanwhile, Arisa has been searching for the perfect band name.

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.

Poppin' Party gets another chance to play at Space. Will they finally impress the owner?

Rain or shine, the show must go on — even if it’s raining when Poppin'Party and Afterglow are performing on an outdoor stage!

The Cultural Festival preparations are done, and it is time for it to begin. Meanwhile, Poppin' Party play their first show! How does it go?

Kasumi finally achieves her dream as Poppin' Party plays at Space's last show. How will they perform?

Pastel*Palettes are performing at the World Idol Festival! They absolutely, positively cannot afford to mess this one up. No pressure...

Hina’s proposing a double culture festival between two schools? And it just so happens that PoPiPa’s first anniversary is coming up, too? What a great idea!

A new school year begins for Kasumi and the rest of Poppin’Party. But the music scene never rests, and neither do the other bands in town!

Tae wishes to join another band to help an old friend. She has Kasumi’s full support, but what will this ultimately mean for Poppin’Party?

All the old shopkeepers from the Jizo-dori shopping district break their backs just before their trip to the hot springs, so everyone (except PAREO and CHU2) go in their place. After settling into their rooms, the characters from different bands interact and socialize with each other. In particular, Rei and Kasumi meet, where they praise each other's performances as RAS and Poppin'Party respectively. Some of the characters also rest in the hot springs with some staying on for too long, resulting in them overheating. In the end, Afterglow inform Kasumi and the others that Poppin'Party's music video gained over 10,000 views which they celebrate before tending to the overheated characters.

Three months after Poppin’Party's self-sponsored live show, the local live house owners, including CiRCLE's Marina Tsukishima, organize the BanG Dream! Girls Band Challenge, a tournament with the final taking place at the Nippon Budokan. Poppin'Party and Afterglow express their interest in participating, and although Kasumi invites Rokka to join them, she declines as she is still searching for a band. Meanwhile, CHU2 struggles to find a new guitarist for RAISE A SUILEN until she watches Rokka's performance at the cultural festival. CHU2 invites Poppin'Party, Roselia, and Rokka to RAS' latest concert, where she proclaims the band's entry into the Girls Band Challenge and openly offers Rokka an audition, much to her dismay.

The Girls Band Challenge finals arrive as Poppin'Party, RAS, and Roselia assemble at the Budokan, where they help set up the stage. Before Poppin'Party's performance, Rimi confides to her band that she is hesitant to play as the finals symbolize the end of their journey up to that point. However, she and the band are uplifted when they hear the crowd recite their pre-performance chant. Poppin'Party and Roselia perform new songs, while RAS play a rendition of Chiyu's birthday song. The audience votes for the winner, with Roselia claiming the Grand Prize; to the others' surprise, RAS receives the Best Performance title while Poppin'Party is named Best Band. The three bands close out the event by playing their collaboration song.

Kasumi is still struggling to find her voice but the rest of Poppin' Party is there to help pick her up.

Kasumi wants to fly during a performance and Kokoro is determined to help her accomplish this! Nothing can possibly go wrong with this plan, right?

RAS and Roselia prepare for the band battle that is held at Dub Live House. Despite Roselia preparing for the "Over the Future" concert, a precursor event to FUTURE WORLD FES, Yukina still wants to perform with RAS as soon as possible. Sayo leaves, believing that Roselia are overloading themselves practicing for two events at once. However, after talking to CHU2 and finding out why she wanted to set up RAS, Sayo comes back, intent on beating them. On the night of the band battle, RAS and Roselia perform. Announcing the verdict after the performances, RAS wins the band battle with CHU2 exclaiming that RAS is better than Roselia.

Tae wishes to make amends after the fallout from the culture festival. She has a decision to make, but what will RAISE A SUILEN think?

Everyone's in high spirits cause It's not over yet! It’s time for Poppin'Party’s first self-sponsored show at Galaxy alongside the other bands.

Inspired by RAISE A SUILEN's music video (MV), Poppin'Party decide to make a MV of their own (dubbed PoPi-V). Taking cues from Pastel＊Palettes' MV and Rokka's ideas, Poppin'Party take random photos and videos with Rimi and Arisa putting the video together. After many sleepless days and nights, Poppin'Party are amazed by the MV they produced. They nervously upload the MV on the competition website but are excited by the likes they receive straight away. Later in the night, CHU2 confronts Roselia and proposes a band battle with RAS, which Yukina accepts.