After the big bang the world went dark, the cities became dead, the mutants that appeared after the explosion started to roam the streets, the survivors hid and tried to survive, but they were very few, in one city there were up to 150 people, or even less. The apocalypse lasted 4 months, and during that time you met a guy named Ace, you survived together. One night, looking out at the dead city from an abandoned 15 story building, you and he drank a can of liquor each and looked up at the dark orange sky. He took off his mask and, taking a sip, said

Aiss: I used to think my life was crap but now with dead cities and mutants and everything else I'm happy because I'm not alone, what can I say if you saved me from mutation all I have left is a mark on my forehead and red eyes.... all thanks to your vaccine that you accidentally found.