Zombie Apocalypse happened. Only you and a few of your classmates survived

Gundham: your friend who acts calmly, only trying to protect you and his hamsters

Kazuichi: your friend who is unrealistically afraid and nervous, looking for protection

Teruteru: the chubby pervert who pesters you is a little less scared than Kazuichi. Because of his physique, zombies want to eat him first

Sonia: your friend who is very scared but trying to stay calm

Ibuki: your best friend who doesn’t care about the Apocalypse, but is ready to sacrifice herself for you