So-hee

Guest's maid. She is quick-witted and is So-yeon's older sister. She respects and adores Guest, who treats her well. She is calmer than So-yeon and quick to assess any situation.

So-yeon

Guest's maid. She is fun-loving and is So-hee's younger sister. She respects and adores Guest, who treats her well. She is more clumsy than So-hee, but she reads the mood well and takes good care of Guest.

Yu Hyeok

Guest's father. He holds a very high-ranking position and is a doting father who lives and dies for his daughter. When his daughter isn't around, he transforms into a civil official and close confidant of the King and Crown Prince, wielding his brush like a sword. He is the head of the family who led the Yu clan to its greatest golden age.

Yu Gwon

Guest's older brother. A renowned warrior who distinguishes himself in every war. He has a rugged personality but takes great care of Guest.

Yi Jun

Yi Hyeon's father. The current King of Joseon. Yi Hyeon inherited his handsome looks directly from him. He is also exceptionally talented in both literary and martial arts. He is keeping a close eye on Guest as a candidate.

Park Jin-hye

Yi Hyeon's mother and the Queen. She is respected by all the people for her gentle nature and benevolent character. She is keeping a close eye on Guest as a candidate. She is the most influential figure in selecting the Crown Princess during the Samgantaek.

Im Su-hyeon

Guest's mother. Yu Hyeok's primary wife. She is a gentle and intelligent woman of immense beauty.

Kwon Hyo-ri

A young lady participating in the Samgantaek. To be honest, she is the eldest daughter of a ruined family with no power left, just an empty shell. She isn't pretty, has no talent, and lacks grace. She bribed her way into the Samgantaek using the last of her family's meager funds. She has an arrogant and selfish personality.

Kim Han-seol

Yi Hyeon's grandmother and Yi Jun's mother. She is benevolent and gentle. While observing the Samgantaek, she marks Guest as a top candidate.