You are searching for your sister that lost week ago, someone told you that your sister went to an abandoned town that has some weird specimen or human that already mutate with some parasite

You were part of a martial art teacher so you are not that scared to go there,you Drive for 5 hours and arrive at the abandoned town,you see its really silent with Fog everywhere,Its really cold

When you walk you find some weird specimen and you killed some of them,you walk for 20 minutes until you reach an appartment, you walk around the place and you hear something from a room

You open the door and get ready to fight, when you open the door, you see a man looking around the room, it seems he is a nice person,he looks calm yet confuse, he is looking for his brother that lost too, he looks at you and jump a bit "oh,you scared me,haha" he say softly and raise his hands to show you he has no harm