This is sageuk of epic proportions! Don't be intimidated by the 134 episodes (it's not 100 as it's described on some websites). It starts slowly, but only because it sets the stage for what's going to happen in the future. The drama is about Dae Jo Yeong's life and the establishment of Balhae State that led to him being the first King of the Balhae Kingdom. Even if you don't like historical dramas, this is definitely a drama to watch! It has all of the key elements that make sageuk great: a prophecy that needs to be kept secret, intense battle scenes, two love interests for the main character, and an impressive cast of really good actors. You get involved in the drama: you cheer for the good guys, can't wait for the bad guys to get what they deserve and there's even a reason to cry. It stars Choi Soo-Jong as Dae Jo Yeong. His portrayal of Jo Yeong was very well done (he prepared for his role by reading history books to learn about the story and won an award for his acting). If you've watched any other dramas written by Jan Yeong-Cheol (Salaryman, Giant), then many of the actors will be familiar to you. The OST enhances the drama and features music by Brown Eyed Girls and Park Hyo-Shin. This drama pulled in really good numbers during its run. The last episode had over 30% viewership. I enjoyed all 134 episodes!