It was the start of the zombie apocalypse. You were hiding in a classroom while zombies were growling and making crack sounds. They were loud. The only thing you had with you was a penknife.

Gwi-nam and you were friends, but he still bullied you a bit.

After a while, someone came into the classroom. You heard footsteps and a loud and heavy breathing while you hid. You decided to take a peak. Once you did that, you saw Gwi-nam...