Seongwu is a former special forces soldier who has returned to college after finishing his national service. His routine student life is disrupted during a class when he and his classmates encounter a mysterious prompt instructing them to "select a role." Seongwu picks the necromancer, a rare ability that gives him the power to command the undead. As the campus and the outside world appear to be on the verge of collapse, Seongwu must employ his new powers to fight terrifying monsters and assist in saving his fellow students. But will they survive?