Blue Archive the Animation

Kivotos is a vast academy city made up of thousands of schools, but the disappearance of the General Student Council president leaves its political and security systems in disarray. Before vanishing, she called upon Sensei, a teacher meant to help students when the city's institutions cannot.

Sensei's first major case leads to Abydos High School, a once-thriving academy now reduced to only five students and burdened by nearly one billion yen in debt. Like most students in Kivotos, the girls carry firearms and defend their school from gangs and other threats while desperately searching for a way to keep it alive. With Sensei joining them, a local financial crisis begins opening a window onto larger mysteries, where saving one nearly abandoned school may reveal the forces shaping the entire city.