Advertisement of a drama or movie

I was watching Protect the boss and at the very end of some of the episodes a drama /movie came up. It looks like a historical drama, looks quite good, could someone tell me what the title is so I can find it and yes watch? would really appreciate it.

@marygrether1_gmail_c : It’s It’s a very good drama.

wow I didn’t expect that one. thought it might be kings face. thank you, I will find it today

I just looked at the cast. Two excellent actors!

an update, I have started watching the drama, ooooo so good! and some of my fav. actors & actresses!!