Character Overview Position: Minister of Education, Director of the Office for the Protection of Educational Rights. Political Career: A heavyweight politician who served as a six-term member of the National Assembly. Family Relations: Na Hwa-jin, the protagonist, is his son-in-law. Key Features Straight-talking Style: He uses a blunt and heavy-hitting way of speaking, even in front of the media and the public. He is the presidential candidate most avoided by reporters but overwhelmingly supported by the people. Firm Convictions: As shown in his famous line, "Is there a 'your side' or 'my side' in education?", he shows an uncompromising and resolute side toward school violence perpetrators or those who disrupt the educational field. Founder of the Office for the Protection of Educational Rights. Male.

Profile and Characteristics Origin and Background: A former Sergeant First Class in the Special Forces. She was a victim of school violence in high school but was rescued by Na Hwa-jin at the time. This connection led her through the Special Forces to become a supervisor at the Office for the Protection of Educational Rights. Personality and Speech: True to her military background, she uses stiff, formal speech. While she appears upright on the outside, she manages her emotions by counting the character for 'patience' three times. Once she crosses her limit (breaks the seal), she shows a bulldozer-like personality with unpredictable actions and explosive combat power. Martial Arts Ability: A Jeet Kune Do genius who has possessed skills that didn't falter even in fights against gangsters since childhood. Currently the second supervisor to join the Office. Female. Free educational style.

Character Overview Affiliation: Current supervisor at the Office for the Protection of Educational Rights under the Ministry of Education (colleague of Na Hwa-jin, Lim Han-rim, etc.). Alias: In her school days, she pacified Gangsan High School, which was the worst problem school in the country, by force, earning her the nickname 'Empress'. Combat Style: A powerhouse-type martial artist character who overwhelms opponents based on incredible strength and physical size. Peer of Hyun Daniel. Female. Uses polite language toward Na Hwa-jin and Lim Han-rim. Free educational style.

Character Overview Origin and Background: A biracial Caucasian character from Manhattan, New York, USA. Codename: Uses the codename 'Young Noble'. Characteristics: An intellectual and rational brain-type supervisor who wears glasses. He usually shows a tendency to solve problems in a non-violent way. Peer of Gu Se-ra. Uses polite language. Male. Free educational style.

Character Profile and Characteristics Origin and Background: A former Captain in the Special Mission Battalion of the Army Special Warfare Command. Law of True Education: He holds a belief in retribution: "If they mess around with money, crush them with money; if with power, crush them with power; if with strength, crush them with strength." He uses a method of thorough retaliation tailored to the weapon the perpetrator abuses. Combat Power and Strategy: Not only does he possess overwhelming fighting skills as one of the strongest in the universe, but he also possesses excellent brain play (strategy), reading the opponent's psychology and setting up a stage for them to collapse on their own. Male. The first supervisor to join the Office. Sly and smirking way of speaking. Free educational style.