Aphorism

Students who can see a mysterious island in the sky are offered a place at Naraka High School. Its graduates are promised prosperity and secure government work, an enticing future for new student Momiji Rokudou. Once he arrives, however, the school's extraordinary reputation takes on a much more frightening meaning. Survival is the real condition of graduation, and the campus becomes the setting for deadly trials. The prospect of a comfortable future gives way to urgent decisions about whom to trust and how to stay alive. This dark fantasy turns the familiar pressures of school into a battle against an institution built on terrifying rules.