This drama is loosely based on one of Korea's oldest folk songs. Suh Dong was the illegitimate son of the Baekje king and with the help of Princess Sun Hwa, the daughter of the king of the Silla, he went on to become the king of Baekje against all odds.
The drama had one of the worst introductions out there. You can never expect anyone to be interested after watching the first 4 episodes. As if they were purposefully made to push viewers away. Anyway, the drama had some brilliant and creative moments at times but all of that was overshadowed by the dominant hot garbage moments. You may expect something worse than Oblivion NPC's level of dialogue and directing. All of the three male leads sucked and disappointed. There was a big massive slump between episodes 35-45 that was rough to get through. Villains and ending were meh.