Yuu and Nobu are practicing manzai (a two-person comedy act) act on the roof of the school. At the same time, the school building is overflowing with the presence of non-human "something else." It is said that if a person dies after being bitten by one of them, it will turn into the same "something else" and attack people. In the chaos of the school, Will Yuu, Nobu, and the other surviving students be able to escape from its evil hands?

Alice in Deadly School

The story begins with the peaceful daily life of schoolgirls—which suddenly breaks down when former schoolmates become zombies. The story follows the actions taken by the girls left behind on the school roof.