ตอนที่ 1: พ๊อปปิ้งพาตี้และอาฟเตอร์กลอว์เข้าร่วมการแข่งขันทัวร์นาเมนต์เกิลส์แบนด์

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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, Chiyu struggles to find a new guitarist for Raise A Suilen until she watches Rokka's performance at the cultural festival. Chiyu invites Poppin'Party, Roselia, and Rokka to her band's concert, where she announces the band's entry into the Girls Band Challenge and openly offers Rokka an audition, much to her dismay. (Source: Wikipedia)