“Pleasant Outcast” follows Dong-hyun, a high school junior who barely survives the day-to-day bullying at school. After wishing everyone would just die, his school building collapses for unknown reasons. Trapped amid extremely isolating circumstances, the surviving students are faced with internal hierarchical power struggles while apocalyptic-like accidents continue to claim more lives. During this time, the students are faced with continuous incidents, confrontations, and collisions. As the dwindling population tries to survive in this new world, the darker aspect of their true human nature awakens.