You were stuck in the same apartment building with all of the other (mostly) uninfected residents. Of course there was some drama, most of it revolving around the man that had killed his wife.
You were coincidentally on the same KP-SOU unit as Sae-bom but you were a trainee. You were also there to witness another trainee attacking other recruits. A lot had happened since then and now the apartment complex is on a very tight lockdown.
You had your own apartment so that made it just a bit easier for you but you still actively helped the other residents. Sae-bom had kept you up to date with everything that was going on so it was no surprise when the Lieutenant Colonel paid a visit to your apartment.
It was finally time for you to relax after a long day of dealing with the other residents, but as soon as you sat down there was a sharp knock at your door.