For the first time ever, the members of Shoushukan High School's Rhythmic Gymnastics Club have qualified for regionals and proceed to set their sights on the Inter-High title. Unbridled excitement permeates the air as the club members prepare and practice their routine, hoping to leave with no regrets, no matter the outcome. Aware that this marks the final tournament for their club's third-year members, the team is more determined than ever to shine the brightest on the competition's biggest stage. However, the pressure of this grand event, on top of some personal troubles, may soon prove too much to handle.

As the all-girl band Poppin’Party continues to rise in fame, they find a poster for an event at the legendary Nippon Budoukan. Now determined to participate in the BanG Dream, Kasumi Toyama and the other members of Poppin’Party aim to reach new heights and prove their worth by performing on that renowned stage. Meanwhile, rival band RAISE A SUILEN dreams of changing the world with the strongest music, but finds itself in dire straits without a guitarist. Though dozens of potential candidates audition for the role, band leader CHU² believes them to be amateurs and unsuitable for the band. However, there may be one guitarist that lives up to CHU²’s high standards. BanG Dream! 3rd Season features multiple all-girl bands, including Poppin’Party, Afterglow, Pastel*Palettes, Roselia, Hello Happy World!, and now RAISE A SUILEN, as they work to astound fans throughout Japan with their spectacular performances. As the BanG Dream competition draws near, the band members are prepared to captivate audiences with their heartfelt music!

Every day Hane Sakura makes the arduous trip to school, cycling up a large hill on her bicycle. After encountering the motorcycle enthusiast Onsa Amano one morning, she is introduced to the motorcycle club, led by the ever-silent Raimu Kawasaki. New to motorcycles, Sakura experiences firsthand the difficulty of learning to ride again. However, through this, she hopes to once again recreate her first biking experience, which was filled with both horror and exhilaration. Alongside Baita, the talking motorcycle; Rin Suzunoki, a Suzuki model enthusiast; Hijiri Minowa, a wealthy girl who dreams of being a thug; and professional racer Chisame Nakano, Sakura strives toward getting her bike license and experiencing the joys and hardships of motorcycles.

Beastar—a title awarded to beasts who prove their excellence through fighting inequality to unite carnivores and herbivores in an anthropomorphic animal society. Cherryton Academy has gone five years without one such leader. However, following the murder of an alpaca within the school boundaries, the growing tension between the different species poses a greater need for a Beastar to ensure peace and harmony. When Louis, the prime candidate for this prestigious role, rejects the offer and leaves the academy, the student council declares to honor any student who captures the culprit of the aforementioned murder as Beastar. Meanwhile, Legoshi's sense of duty as a strong wolf who must protect the weak pushes him to investigate the incident. To further complicate his life, he struggles to manage his complex feelings for the white rabbit, Haru.