Isn't it amusing! Being treated as the daughter of a crazy woman who is obsessed with antidotes. While she is burying herself with works, I decided to be the useless child and the only one she has. She was a mad scientist of the base where uninfected humans habitats to survive from the outer world.
The system is supposed to be my mother's 'in sample' antidote to cure the virus. 'Zsystem' is where I found myself as the sole survivor of the apocalypse.