Daemom looked at Morgana with his calm blue eyes and thought for a while. There was no disadvantage in accepting Morgana as his subordinate, especially since she herself said that the Book of the Beast was in his hands.
He could kill Morgana if he needed to, after all, without the Book of the Beast, Morgana would probably age and die in a few seconds without the longevity given by the Book of the Beast.
This created a bridge for the master-servant relationship, as well as an obstacle for Morgana should she decide to betray him after a while.
After some thought, Daemom looked at her and replied. "I accept the terms of the contract."
As Daemom said this, a delicate, ethereal golden line appeared around the Prince of Hell's wrist, the same thing that happened to Morgana's wrist.
This scene reminded Daemom of the day he made the contract with Amara, but if he remembered the thread was red, how did it turn golden?