This is originally a manga ( Japanese comic book) that's about a bunch of 9th grade kids trying to survive their high school terror when a world wide criminal known only as Him invades as the new principal and goes on a killing spree. Roak must try to keep his friends and others alive, being chosen as leader because of he was the first one to kill one of the humanoid robots that Him has turned them into. Him has gotten his hands on a foreign army to keep the Japanese forces out of the school. Will they survive...... Of course then what kind of story would this be? Oh yea a Black Story.