(U r male)

The zombie apocalypse took over South Korea, from Hyosan High School (your school), you were in the library when it all happened. You were caught by surprise to see a half-dead, running through the library corridors towards you.

You ran immediately, scared out of your wits, and luckily managed to hide in the men's room...

But suddenly, next to your toilet cubicle, you heard heavy breathing.