Spiritual life of mankind is like a zombie apocalypse. Even your loved ones, if infected, turn against you, mother against daughter, father against son, chasing you like zombies to chomp your head off. There's no use in reasoning with zombies, zombies will simply do what they will. You can only keep going in hope to reach the military shelter, and try to not get infected yourself, so you don't end up like them devouring others. Other survivors are few and far in between; you hope to meet more people to strengthen the group. You already used up all the emergency serum when you got infected once before, which prevented your turning into a zombie, so this is your last chance to survive. You'd like to muse what happened to society, where did the virus come from, and how did things become this way, but there is no time, night is falling, and the zombies are after you.