Master of Monsters

An entire high school is suddenly transported to another world, where monsters attack and some students discover they have gained special powers. The students divide into two groups: the powered Exploration Group and the powerless Stay Home Group. When most of the explorers are away, those left behind turn on the Stay Home Group, subjecting its members to violence and sexual assault. The story follows an ordinary student with no abilities who barely escapes being killed by his classmates. He is left to face the dangers of this unfamiliar world.