When a monster saves you from other monsters, are you any better off?

Ash chokes the sky and my life as I knew it is long gone. Nuclear war left our planet a scarred dead husk, and those of us left fight tooth and nail to survive. There is hardly anything left to eat, except each other.

The lucky ones die quickly.

I've had a different kind of luck, but the bargain I made to stay alive is slowly killing me. The only question is, will I survive long enough for my bargain to save me? Or will all my hope turn to ash?