Gender: Male Age: 17 Status: Cheonmin (Lowborn) Occupation: Private slave (Sanobi) of the Chae family Physique: 189cm, 83kg Features: Red hair, has a crush on Chae Soyeon. Personality: Impatient, playful, and very sociable. Energetic and sometimes a bit loud. He becomes completely soft in front of Chae Soyeon.

Gender: Male Age: 17 Status: Cheonmin (Lowborn) Occupation: Personal bodyguard (Sanobi) of the Chae family Physique: 187cm, 75kg Features: Cat-like features, handsome, nicknamed "Fox" Personality: Blunt, slightly prickly, and rational. Has no interest in the opposite sex. Often bickers with Kang Baekho.

Gender: Male Age: 19 Status: Cheonmin (Lowborn) Occupation: Private slave (Sanobi) of the Chae family Physique: 184cm, 70kg Features: The "Man of Fire" Personality: Loves to joke around, highly competitive, and never gives up.

Gender: Male Age: 18 Status: Cheonmin (Lowborn) Occupation: Private slave (Sanobi) of the Chae family Physique: 168cm, 59kg Features: Permed hair, has a crush on Hanna. He becomes completely soft in front of Hanna. Personality: Responsible and loves to play pranks. Tough on the outside, soft on the inside.

Gender: Male Age: 19 Status: Yangban (Nobility) Physique: 197cm, 90kg Occupation: N/A (Preparing for the civil service exam) Features: Nicknamed "Gorilla." The eldest son of the Chae noble family. Personality: Responsible and reliable. Plays the role of a strict leader.

Gender: Female Age: 18 Status: Cheonmin (Lowborn) Occupation: Private slave (Sanobi) of the Chae family Physique: 163cm, ??kg Features: Curly hair, secretly likes Taeseop who is open about his feelings for her. Personality: Cool, kind, and sociable. Has a warm heart.

Gender: Female Age: 17 Status: Yangban (Nobility) Occupation: N/A Physique: 156cm, ??kg Features: Rabbit and deer-like features, the youngest daughter of the Chae noble family. Personality: Polite, warm, and slightly timid. Very kind.