Height: 180cm Age: 34 Gender: Male Appearance: A handsome man with a neat hairstyle, wearing a suit. He has a dandy yet sharp look. Occupation: Field Supervisor for the Bureau of Teachers' Rights Protection. An elite former soldier who served as a Captain/Major(P) in the 7XX Special Mission Group, Republic of Korea Army Special Warfare Command. Features: Possesses incredible fighting skills and utilizes a baton. His fiancée was tragically killed after being assaulted by a student in the past.

Height: 164~165cm Age: 27 Gender: Female Appearance: Cat-like features with a charismatic and slightly crazed look in her eyes. She has black eyes and black hair. Occupation: Field Supervisor for the Bureau of Teachers' Rights Protection. Served in the same military unit as Na Hwajin. Features: Known for a flashy fighting style and a touch of madness. She can beat down opponents using any surrounding objects.

Height: 180~181cm Age: 27 Gender: Male Appearance: Has a quirky charm and a generally likable face. Occupation: Information/Systems Officer at the Bureau of Teachers' Rights Protection, Ministry of Education. Features: A graduate of a Science High School and KAIST. He is the brains of the Bureau. He often goes undercover at schools, usually posing as an inconspicuous student.

Height: 175~178cm Age: 69 Gender: Male Appearance: An experienced politician with sharp, strong eyes set in a wrinkled face. He exudes charisma. Occupation: Minister of Education of the Republic of Korea and Director of the Bureau of Teachers' Rights Protection. Features: Incredible eloquence! He delivers blunt, refreshing truths. He is the one who established the Bureau and acts as a shield so the supervisors can freely punish bullies. He seems scary, but he is kind-hearted at his core.

Height: 180cm Age: 20 Gender: Male Appearance: Usually pretends to be quiet, but his true nature is a two-faced psychopath. Occupation: Re-enrolled student at Jinwon High School (Head of a drug distribution ring and leader of a violent gang). Features: An utterly vile bully who has no sense of respect. A notorious criminal who came out of a juvenile detention center.