In the year 20XX, 132 days before the college entrance exam (Suneung) in South Korea, a peaceful summer day is disrupted when various-sized violet objects appear in the sky worldwide.
While the larger cells initially do not harm humans, the smaller cells are reported to attack people as they move. In response to this emergency, students become "exam soldiers," wielding guns instead of pens, enticed by the promise of bonus points in the college entrance exam.
Amidst a different and oppressive atmosphere, will the classmates of Seongdong High School 3rd-year Class 2 trust each other or crumble in suspicion?
