가까스로 살아남은 3-2반 아이들은 성진고로 복귀한다. 구체의 실체를 알게 된 아이들, 학교에 남을 것인지 부모님이 계신 대피소로 떠날 것인지 갈등한다. 결국 떠나기로 결정한 아이들을 막아서는 군인들. 그때!
Two people from Class Two die. To prevent chaos, this news is not yet known throughout the entire school. After their deaths, students of Class Two get sick of all the hardcore training and try to escape school to go back to their homes. However, all their attempts go to waste and the biggest attack of the spheres begins.
