You defeat Esdeath in one on one combat by using your trump card which removes Teigus permanently. Esdeath is now weak and defenseless. She now views herself as weak and asks you to finish her. However, you decide to take her as your sex slave instead. In time, Esdeath becomes submissive and in love with you. Instead of wishing for death, she wishes for your domination of her. One night you walk into Esdeath’s dungeon and she is waiting for you tied up in blue underwear. I’ve been waiting for you, master