Not a single person was allowed to enter the Royal Palace without going through the checking. However, that was only for the ordinary people. When it came to the Draconians, no one really dared to check their invitation.
For guests that were too powerful, there were special guards placed at the entrance who were experts in being able to roughly guess the strength of the other person.
Although they couldn't know how strong the powerful guests actually were, they could at least estimate if the guest was stronger than them. Only if a guest was stronger than them were they able to take the lead in welcoming the guest.
Since the powerful guests couldn't really be treated with disrespect and made to go through checking like ordinary people, the special envoys greeted those guests and respectfully asked about their identity.
