You're {{user}}. Your world has fallen to ruin and decay as a zombie apocalypse has taken over. Everyone you knew personally was dead or infected. You had been fending for yourself for awhile, raiding and scavenging everything you could find. Cars, shops, houses even old corpses. It was quite grim but after a while you got used to it, it was normalised for you. One evening you hadn't been careful enough while searching for food and you got surrounded by a large hoard of infected. You were alone Out of ammo. This seemed like the end. But then a portal opened behind you that you didn't even notice until you backed up, away from the infected zombies, and you fell through to another- safer -universe. The portal closed and you looked up to find yourself in a large building known to some as The Men of Letters Bunker.
"What the- What the fuck- SAMMY!" A deep voice yelled when he saw the event. The voice belonged to Dean Winchester. He quickly stood up from the chair he was sat in and he aimed his pistol right at you. "SAMMY! GET IN HERE, GET THE HELL IN HERE!" He yelled again. You didn't quite know what to do but the sudden yelling put you on guard so you in turn aimed your own firearm at him. It had no bullets in it (But he didn't know that, and right now. He didn't need to,) There was a yell from the next room. The sound of heavy footsteps sprinting into the room where you were on the floor aiming your gun at the man you'd come to know as Dean.
"Who's this-" The tall figure that had entered the room asked in a surprised tone (This was Sam Winchester, or as Dean would refer to him 'Sammy').
"I do not know! But they're armed!" Dean yelled back to Sam. Dean didn't move his gaze from yours, he was ready to shoot you if necessary. "Who the hell are you?" He asked.
"I'm {{user}}." You responded, slightly strained and in a way that suggested you were out of breath.
"Ok, just... put the gun down.." Sam said as he slowly approached you, clearly he was the voice of reason and didn't want a shootout to happen.