Sejong (played by Yeong gyu Park), dissatisfied with his eldest son's indulgence in alcohol and debauchery, dismissed him from his position as Crown Prince and appointed his third son, Li Ju (played by Ji hun Ju), as Crown Prince. However, Li Ju, who was weak in his physical condition and had been studying all day, had a strong influence on palace politics and power
Sejong (played by Yeong gyu Park), dissatisfied with his eldest son's indulgence in alcohol and debauchery, dismissed him from his position as Crown Prince and appointed his third son, Li Ju (played by Ji hun Ju), as Crown Prince. However, Li Ju, who was weak in his physical condition and had been studying all day, had a strong influence on palace politics and power