A list of those in line to the throne (see Act 1, Law 3) is to be kept at the residence of the Royal Family (1 Imperial Road).
People may be removed from the line of succession by the Emperor and Prime Minister (they must both agree) if: [This law has been changed – see Act 50, Law 6]
They are considered unfit to rule should the throne pass to them.
Not enough information is known about them.
Another reason by which the Emperor refuses to let them be in line to inherit the throne.
People may refuse the throne should it pass to them. In that case, the throne shall pass to the next person on the list.