It includes that private rights cannot be controlled or changed without the permission of others.

As far as your sister is concerned.

Whatever the reason, the fact is that your sister legally owns the household registration and enjoys and will continue to enjoy relevant rights for her.

No one has the right to deprive this right.

Or in other words, you can understand.

Your mother has no right.

Without your sister's consent.

Supplementary question: If my sister gives birth to a child, can I report the child's household registration to my home without the consent of my mother?

Excuse me, what do you call your home?

You have the same rights to this house as your sister.

If my grandfather dies, is she the owner of another room?

This is not easy to deduce directly, and it is meaningless.