I've recently decided to create a new novel where its setting is centuries after the nuclear war had end and Humanity has been dwelling in fallout bunkers half the size of a city. After that few centuries, radiation has died out quite a bit and they started bring dominance into the world once again shortly after water and food have been eaten. Only difference is that it brings a whole level of survival to Humanity as they explore new things: no food, no crops, no clean water and there are creatures out there with deadly mutations. My story is quite simple, It will be based on two survivors of this brave, new world a few decades after settlements has been drawn onto the land. The two characters is ruthless man going on by the name of "Martin" who will do almost anything to take on daily threats to his survival, further along the story (maybe around the end of chapter I or the middle of chapter II) he meets a young teenage girl struggling to fight for her life across the decayed land. (Of course, I'll obviously reveal her story of how she came to be) But that what hits me, why would a man such as Martin will accept safeguarding her with his life? When he, himself is ruthless, selfish and partially just 'bad'?! Do men still feel the need to protect a child from dangers, and also love them with dearest hearts? Thank you, for reading my small issue. Hopefully, you'll offer a quick and swift solution to this.