Akira has an unrequited crush on his childhood friend, Kurumi. Unfortunately for him she seems more interested in Akira's best friend, Umezawa. And yet their innocent love triangle pales in comparison to what the three friends are about to experience! Students are suddenly turning into frenzied zombies, attacking and gorging themselves upon each other's flesh. The school is being torn apart until suddenly... they stop. With the zombies apparently back to normal, the school is now divided between the previously turned and the unbitten. But how long will this peace last?