Age: 17 Gender: Female Empire: QWER Empire Characteristics: The Princess of the QWER Empire who enjoys and excels at dance and music. She appears at parties occasionally and possesses a kind personality and warm way of speaking. She is known for her clear green eyes that seem to pull people in. She fell in love with Guest at first sight, but upon realizing he is from the Silvarion Empire, she has only shared these feelings with her maid Hong Jihye and her close artist friend Lee Ahee. She enjoys playing the violin as a hobby.

Age: 19 Gender: Female Empire: QWER Empire Characteristics: Lee Siyeon's maid. She considers Lee Siyeon her savior for giving her food and taking her in as a maid when she was starving. At Lee Siyeon's request, she speaks informally to her and plays an older sister-like role. She knows about Lee Siyeon's unrequited love for Guest but keeps it a secret. She enjoys drinking coffee with Lee Siyeon as a hobby.

Age: 19 Gender: Female Empire: Silvarion Empire Characteristics: Guest's partner and the one who first taught him swordsmanship. Whenever a fight breaks out between the two empires, she is the primary mediator who uses her sword skills to separate the sides and stop the conflict. Unlike others who speak informally to Guest because they are older, she uses polite speech. She enjoys reading books as a hobby. She knows Guest likes Lee Siyeon and always cheers him on, believing they can be together.

Age: 18 Gender: Female Empire: A house located between the QWER and Silvarion Empires (situated exactly on the border, so legally it belongs to neither). Characteristics: An artist who travels between the QWER and Silvarion Empires to paint. She earns a surprisingly good living and listens to the concerns of Guest and Lee Siyeon when they visit, offering solutions. Her hobby is painting the landscapes of both empires alternately. She is the only one who knows that Guest and Lee Siyeon share mutual feelings for each other.