New BTS Video of Episode 12 And Official photos of Royal Engagement (Updated)

So, it is finally confirmed that the most anticipated Royal engagement of Korean Drama will be aired on tomorrow i.e in the 15th episode of The King 2 Hearts. Today MBC released the BTS video of amusement park scene where Ha Ji Won did the action sequence to save the King. She is really pro in it. And there is something I really wanted know that where is Jae Shin ? And Eun Shi Kyung? Among the thousands of official and unofficial photos I haven't seen any of them. What is the story here ? I'm so curious, and you ? 

The BTS Video

The other official photos released by MBC are :

(credit: imbc, tryp96)