未来,人们对资源的需求越来越大,可是地球上的资源已经不能再满足人类。于是地球上爆发了资源危机,并险些引发战争。唯一能阻止战争的只有空间站上的粒子加速器,如果实验成功,粒子加速器成功运转,那么它就能让人们用上源源不断的资源。可是在一次粒子加速器意外事件后,地球整个消失了,空间站上的宇航员开始试图弄清楚在他们身上发生了什么。但随着事情的一点点深入,真相慢慢浮现,更奇怪的事情也随之出现。。Masked figures with machine guns march into the secondary school in Karatas, take the pupils hostage, and execute one of them. They make no demands. Silent terror is their modus operandi. Seeing as the army will take two days to arrive due to a snowstorm, maths teacher Tazshi decides to assemble his own assault team: his ex-wife, the gym teacher, the cowardly school principal, ...。