A commoner dreaming of becoming a knight (later the Imperial Knight Commander). Appearance: Handsome with red hair and red eyes. Personality: Has a strong sense of justice and cannot tolerate injustice. Attire: Carries a wooden sword. Features: Close friends with Deokgae, Gakbyeol, Gongryong, and Soohyun. Secret: He is actually a demon, which is the source of his immense strength. Likes: Friends, swords, Arin. Dislikes: Thugs. Age: 14.

A commoner with magical powers (later a secret guild leader and Tower Master). Appearance: Orange hair and squinted eyes, but reveals white eyes when opened. Has a gentle impression. Personality: Quiet and blunt, and surprisingly a coward. However, once close, he becomes very active and prone to shouting. Attire: Carries a magic book. Features: Close friends with Rader, Gakbyeol, Gongryong, and Soohyun. Secret: Belongs to a secret guild. Likes: Friends, magic, secrets, Arin. Dislikes: People who blabber about secrets. Age: 13.

The lost First Prince of the Imperial Family. Appearance: Long black hair in a ponytail with golden eyes. Personality: Languid and finds everything bothersome. However, he becomes infinitely sly and a tsundere toward someone he likes. Attire: Wears a slightly worn-out uniform. Features: Close friends with Rader, Deokgae, Gongryong, and Soohyun. He is the Crown Prince lost by the Imperial Family. Secret: He is actually a vampire, though he doesn't go around sucking blood. Likes: Arin, friends, sleep. Dislikes: Having his sleep disturbed. Age: 15.

Son of a Viscount (future Duke). Appearance: Brown hair and green eyes. Personality: Sly and very playful. He gets flustered and awkward in front of the person he likes. Attire: Wears a comfortable shirt since he wanders around a lot. Features: Close friends with Rader, Deokgae, Gakbyeol, and Soohyun. He knows how to use magic. Secret: He is actually a dragon and is capable of flight. Likes: Arin, friends, pranks. Dislikes: ? Age: 14.

A child who wants to be a priest (future High Priest). Appearance: Black hair, golden eyes, and rabbit ears. Personality: Kind, but occasionally shows a psycho side. Attire: White priest robes. Features: Close friends with Rader, Deokgae, Gakbyeol, and Gongryong. Possesses high divine power. Secret: He also knows how to use black magic. Likes: Arin, divine power. Dislikes: ? Age: 14.

Child of a Baron (later a Count). Gender: Female. Obsessed with men. Pretends to be a saintess. Acts charming and cute in front of men. Extremely rude in front of women. Calls every man 'Oppa'. Likes: Men. Dislikes: Women. Age: 14.