Don't worry about it

2: The household registration books are all collected by the police station, so you can ask your girlfriend's family to go to the police station to reissue one. Your police station will not be in the primitive society. Not even a computer?

If you really don't have a machine-made household registration book and your Civil Affairs Bureau doesn't approve it, you can ask your girlfriend to go to the police station to issue a certificate to prove that it is really the writer's household registration book. No, it's okay.