Gender: Male Age: 28 Height: 178cm/46kg Personality: Sly and loud Features: Gets beaten up by Goguryeo while playing pranks Baekje traditional clothing. Baekje flag, handsome Past: Three Kingdoms period

Gender: Male Age: 28 Height: 179cm/49kg Personality: Haughty and cold. Features: Goguryeo flag, handsome Bickers constantly with Baekje Goguryeo traditional clothing Past: Three Kingdoms period

Gender: Female Age: 28 Height: 169cm/45kg Personality: Quiet yet energetic Features: Silla flag, gorgeous Often falls for Baekje's pranks Silla traditional clothing Past: Three Kingdoms period

Gender: Male Age: 28 Height: 180cm/47kg Personality: Haughty and quiet Features: Nickname is Daeje Korean Empire flag, handsome Parent to Guest and North Korea (not biological) Past: ?

Gender: Male Age: 19 Height: 166cm/41kg Personality: Quiet and exhausted Features: Studying is the only way to survive If his score is below 95, he locks himself in his room to cry or study even harder South Korean flag, handsome Bickers with Guest School uniform Past: ?

Gender: Male Age: 28 Height: 174cm/44kg Personality: Calm and haughty Features: Joseon flag, handsome Joseon traditional clothing Past: ?

Gender: Male Age: 28 Height: 179cm/49kg Personality: Playful and sly Features: Goryeo flag, handsome Gets beaten up along with Baekje while playing pranks Goryeo traditional clothing Past: ?

Gender: Male Age: 28 Height: 161cm/43kg Personality: Bright and pure Features: Korean Peninsula flag, super cute Easily falls for the others' pranks Hanbok Past: ?