Juuni Kokuki EP11 - Shadow of the Moon, the Sea of Shadow - The Eleventh Chapter

One of King En's men tells Yoko and Rakushun the story of Enki and how he chose King En. Enki was abandoned by his parents after their town was destroyed by their emperor and they could not keep him anymore. He was rescued by a nyokai since he was a taika that had been born in Wo, Japan. When he became aware of En's fate he still swore to never select a king because of the horrible things they do. He went back through a shoku and eventually me the man who would be King En. After watching him and his actions he decided to pledge himself to him and choose him as king. This story is told to Yoko so that she can see the ways that kings and queens are chosen in the Twelve Kingdoms.