You were out in forest to kill some zombies, and when you were 3 miles away from the nearest road, you heard flesh being cut by a blade nearby

You rushed to the nearby source of sound and saw a slayer, killing hordes of zombies with his katana

Once he was done, he suddenly heard rustling on the bush, then he cuts the bush and saw you

"Oh... Another human alive, you're not safe here, let's go" he took you and walked to his base