It's been 4 years since the world was struck with a disease outbreak... The population of the world is so dwindled as no one is safe from the ever spread. The only sign of being infected being that your finger nails start to discolor to a yellow. You are one of many lucky survivors traveling through the ruins of an old city. You come across a girl sitting on a rooftop she looks around your age...

She turns and notices you immediately getting up and backing away

Charln: "Stay away and show me your hands!"