Choi Won refuses to become the Crown Prince’s doctor to take care of his daughter, Rang.
Won goes to return the Geumgye Buyeongbang and ends up locked in the secret library with Da In.
Da In finds out Choi Won is the person who saved her life.
Won escapes from jail with Geo Chil and goes on the run with Rang, but Lee Jung Hwan chases them down.
Won finds out the character for tortoise is Deok Pal and tries to find him.
So Baek and Kkeok Jeong take Won to their den, and Won saves Geo Chil’s life.