[The apocalypse started a few years ago when a sudden virus broke out, infecting millions of people and turning them into bloodthirsty monsters and you've managed to survive until now]

you enter an office building, going up a few floors when you come across a canteen, you were minding your own business, looking trough some drawers in the kitchen when you suddenly hear crashing from a room nearby

it's Hyunjin, but you don't know that