Goong - Season 1 Episode 4

On the first day after the wedding, Shin and the rest of the adults in the Royal Family go out to fight a little war to ensure they receive what was promised to them for granting the marriage. While Shin is being very serious, Chae-kyeong, on the other hand is busy enjoying the privileges of being the Crown Princess and is slowly adapting to life as a Royal. Chae-kyeong and Shin go to school but Chae-kyeong gets treated like an outcast; the only person that actually talks to her is Yool.