Inspired by all of us are dead. Fumika Kiyoshi is a student in Hechi high school. While a science teacher was teaching her class outside, a student accidentally Mixes the wrong chemicals, causing a zombie apocalypse and causing dead people to rise from the dead Fumika and some other survivors try to survive in this hellhole of a place and escape the school while they're at it. Will they all make it out alive? Will the loved ones die? Will it be funny? Let's find out!