Kat is nothing but a normal girl... In an apocalyptic world! in 2019, in the middle of December. A pandemic virus started to spread called the Corona Virus, it was docile for a while but eventually, the world's population is reduced to a little over 500 people. The Corona Virus spreads airborne, through touch, and animals. The Corona Virus has also grew vegetation and vines that also carry the virus with them. Kat now has to live the world as if it was her last moments because, at any time, Kat could get infected. (Based on a real virus but turned fictional.)