I think the fact there are others out there capable of brain transplantation is more significant than it may seem. Could this potentially be related to Robin
Damn, forced to slave away for even longer than your lifetime sure doesn't sound better than death.
Not that I'm a supporter of the death penalty but I think working a normal human's lifespan should suffice.
Additionally, brain transplantation probably wouldn't be cheap and since the robots would be quite limited in their ability for safety reasons, this might not even be worth it from an economical point of view.
Nata wondering what she did to deserve a punishment such as being turned into a robot is quite sad, considering it actually saved her from the hiruko disease.
Seeing the disease transform a friend with your own eyes must be horrible
runs straight to the zombie
Not sure if revealing (almost) all mysteries in the next chapter is something positive, but I'm looking forward to it.