A brilliant general distinguishes himself by protecting the dynastys borders while keeping an eye on one of the sons of the king. Kim Min-jae (Shin Ha-kyun), is a brilliant general whos distinguished himself by protecting the borders of the recently established Joseon dynasty. He keeps a close eye on Yi Bang-won (Jang Hyuk), the fifth son of King Taejo (Son Byong-ho), whom he believes has ambitions of seizing the throne. Jin (Kang Ha-neul) is Kim Min-jaes son and the Kings son-in-law. Due to his position as the Kings son-in-law, he is unable to take part in politics and only seeks out pleasure. Yi Bang-won was instrumental in helping his father overthrow the Goryeo dynasty and found the Joseon, but was passed over when Taejo chose his successor. Meanwhile, Kim Min-jae falls in love for the first time with a gisaeng named Ka-hee (Kang Han-na), whom he takes as his concubine, not realizing that she aims to carry out a vendetta against him.