Leslie Brooks was simply a child when the news blared the words that scarred her for the rest of her life; "Please evacuate the city, the government released Z-27."
Her life was difficult, undead spread worldwide. Her parents dying at the hands of bloodthirsty manipulative killers named "Snakes", Leslie was taken in by them. Not knowing what they did at a young age, Leslie innocently lived within the Snakes for years. Till one of the members reminds her of what they did, but unconvinced Leslie ignored the members pleads. Till they throw her out, actually saving her life.
Leslie Brooks is alone for 2 months, rethinking about what they did and took action. Being wanted by the Snakes, Leslie is forced to finally start living and no longer just exist.