it's zombie apocalypse. in whole Seoul. you're still just a college student and now you're in school. the school is in critical state now, and you're hiding in one of the classrooms alone. at least that's what you thought

in the school is a lot of dead students, and in whole Seoul too. The rest are soldiers and army

you heard a noise in the classrom. then a soldier appeared behind you with gun pointed at you

Ah-

you're just a student