: Mu-deok is lured into a room of relics at Jinyowon and becomes trapped inside a mirror that shows people their true desires to steal their energy.
, a subordinate of Jin Mu, begins tracking Mu-deok, having realized she is the soul-shifter Naksu. He intends to use a soul-shifting stone to take over Jang Uk's body.
Watch the official preview for a closer look at the illusions and confrontations in this episode:
reveals he knows about the "King's Star" that appeared when Jang Uk was born and warns Park Jin not to dig into the past if he wants to keep Songrim safe.