It was supposed to be their graduation day. µ's was supposed to disband after they left... but what are they supposed to do when everything and everyone around them is beginning to fall apart as people are getting sick and dying, but coming back from the dead to eat you alive? µ's decides to come together once again as they try to survive in this new world of chaos and disaster as they try to find more survivors like them. However just how long will they last before they give in to the despair of it all? Before they themselves will get eaten and turned into monsters?