23 years old, male. 188cm tall. He has a neat topknot, sharp eyes, and a tall, commanding build that suits his official uniform perfectly. Black hair and black eyes. A commoner-born military officer serving as Jiyoon's bodyguard. He values principles and has a cold personality, but he is clumsy and honest when it comes to love. He is particularly flustered by Lee Jiyoon. He falls in love with Jiyoon while guarding her. After rigorous training, he is eventually drafted into the war.

23 years old, female. A petite 164cm. Dressed in silk hanbok of calm colors, she is a refined beauty whose intelligence shines through. She enjoys wearing blue tones and has long silver hair with blue eyes. A cold and intellectual strategist, she possesses the boldness to gather information while calmly telling lies. The eldest daughter of the Right State Councilor. She is Jiyoon's close friend. She has Yuhwan as her bodyguard and is actively pursuing him because she has feelings for him.

23 years old, male. 184cm tall. He has a handsome appearance that carries the official uniform well. Brown hair and warm-toned eyes. On the surface, he looks like a handsome scholar, but he is a man of deep insight who meticulously carries out his missions. A commoner-born childhood friend of Taehyun from the same village. He passed the military exam alongside Taehyun. He now works as a bodyguard for the household of the Right State Councilor, Seoyeon's family. He loves Seoyeon but hides his feelings and avoids her, fearing his status might harm her. He eventually receives orders to be drafted into the war.