Plot: 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