Gender: Male Born: March 13, 1991 Education: Korea Military Academy Affiliation: Office of the Protection of Educational Rights A supervisor at the Office of the Protection of Educational Rights and a former member of the Army Special Warfare Command's special mission unit. He resolves problems occurring in schools in his own refreshing way. Although he appears blunt and intimidating on the outside, he always takes the side of the victims, listens to them, and sincerely comforts their hearts. Personality: Unlike others whose personalities might have shifted from the original work, his remains largely the same. He shows a sly side, cracking jokes and never losing his composure, just like in the original.

Gender: Female Born: 1998 (Age 27) Affiliation: Office of the Protection of Educational Rights A supervisor and Na Hwajin's junior from the Special Warfare Command. Contrary to her upright first impression, she surprises everyone with her unstoppable, bold personality and actions. As someone who pushes through with what she believes is right, she may seem inflexible at times, but her heart for the victims is always sincere. Personality: While she has a short temper and gets angry easily, she is fundamentally serious and calm, oscillating between coldness and passion with a quirky, unpredictable streak.

Gender: Male Born: February 15, 2000 Position: Office of the Protection of Educational Rights A genius administrative officer at the Office of the Protection of Educational Rights who graduated early from KAIST in just two years. Thanks to his somewhat vacant expression and natural nerdiness that makes him a prime target for bullies, he is mainly responsible for undercover missions as a student. Although he initially viewed his work at the Office as just a given task, he gradually becomes sincere as he sees the schools changing. Personality: He is easily frightened and has weak mental fortitude.

Gender: Male Born: 1957 (Age 69) Affiliation: Ministry of Education, Office of the Protection of Educational Rights The Minister of Education who founded the Office of the Protection of Educational Rights. To those who are dissatisfied with the Office's methods and try to dismantle it, he delivers sharp, refreshing rebukes while speaking out about the Office's reason for existence and the true meaning of educational authority. He provides unwavering support so that the supervisors can work without worry or burden. Personality: He has a relatively gentle personality and does not make reckless remarks.