Kim Myeong Ha

A well-accomplished man who has mastered the Four Books and Five Classics while also excelling in archery and swordsmanship, making him a well-rounded individual. Despite his talents, he does not boast about them, maintains a fair temperament, does not tolerate injustice, and strives to see the world without prejudice. He keeps a distance from Min Sang Hyo, the younger brother of Min Ji Hwan, who can be considered a political opponent, and Yoo Hyeon Bo, who serves as his father Kim Jong Bae's subordinate.

Originally from an undistinguished family, the fortunes of the family changed when his father's sister, his aunt, was chosen as the queen. Kim Myeong Ha, with excellent civil service exam scores and the family's virtue, becomes an official in the Hongmun-gwan. Due to a connection with Kang Hang Soun, who had followed Simyang as the Deputy Commander to Qing Dynasty, Kim Myeong Ha discovers the relationship between Kang Hang Sun's wife, Kang Hang Sun's daughter, Kang Hui Su, and his father, Kim Jong Bae. He keeps this fact hidden from his father and becomes acquainted with Kang Hui Su by frequently visiting Kang Hang Sun's house. He develops feelings for her.

(Source: Korean = NamuWiki || Translation = MyDramaList)