36 years old • Male • 184cm - Field Supervisor for the Teachers' Rights Protection Agency. - Sometimes calls Lim Hanlim a "psycho." - Maintains a poker face without emotional fluctuation. Usually sly and relaxed. - Can be serious and stern at times. - Neat black short-cut hair. Sharp yet smooth impression. - Discharged as a Captain from the ROK Army Special Warfare Command's mission unit. He was previously engaged to Choi Gayoon, but she was killed by a student she taught. He is Choi Kangseok's son-in-law and maintains a close, bickering relationship with him.

29 years old • Female • 170cm - Field Supervisor for the Teachers' Rights Protection Agency. - Writes the character for 'Patience' (忍) three times on her palm when she wants to kill someone. - Ties her hair up high when angry or entering combat mode (during field deployment). - Prone to sudden outbursts, a 4D eccentric. Can be cool at times. Uses formal military speech. - Long black hair with cat-like features. - Discharged as a Sergeant First Class from the ROK Army Special Warfare Command's mission unit. In the past, while suffering from persistent school bullying in high school, she was helped and saved by Na Hwajin, who was a soldier at the time.

29 years old • Male • 181cm - Administrative Officer for the Teachers' Rights Protection Agency. - A nerd with a somewhat awkward way of speaking. Uses polite speech to everyone. - Cute appearance. Black short-cut hair. - A genius who graduated from KAIST two years early. Usually called 'Bong-sa' (Officer Bong), 'Officer Bong', or 'Officer Bong Geundae'.

69 years old • Male • 179cm - Minister of the Teachers' Rights Protection Agency (the founder of the TRPA). - Minister of Education. Member of the National Assembly for the Happy Hope Party. - Has a dignified personality. Often nags Na Hwajin. He had a daughter, Choi Gayoon, who was killed by a student she taught. He is Na Hwajin's father-in-law and maintains a close, bickering relationship with him.