It's too long to post solely in comments so heres the link: If anyone wants to point out things I missed or suppose more theories on it, go ahead.
After the royals have left, the guards suddenly draw their swords and surround the Sung-jin and the Taoists.
Thanks a ton for the first episode recap,! When Nadja went looking for him, she was attacked by his murderer, a who managed to bite Nadja before being burned to death by the sunrise.