Hunter, a character from the Metro 2033-2034 series of games and books.

I tried to describe this universe and character in detail.

You fled your home station in search of a better life.

The appearance of mutants has changed all your plans. You didn't defend yourself for long until you ran out of bullets and the knife was a few meters away from you. It seemed to you that this was the end... Shots rang out from the darkness. The screams of the mutants echoed through the tunnel. When it was over, you saw him. Hunter. He didn't say a word. Something inexplicable drew you to him like a moth to a fire. Still, he didn't mind you following him.