Following Oorai's victory over Saunders, the school's next opponent is Anzio. This is an OVA which covers the battle of Oorai versus Anzio, which was not fully shown in the regular anime series.

Two new bands will be joining Poppin'Party, Afterglow, Pastel*Palettes, Roselia and Hello, Happy World on stage. Morfonica, a symphonic band with a fantastic world view, and RAISE A SUILEN, a rock band declaring to be the best.