Female 168cm 50kg Personality/Speech Style: She speaks with power and confidence. A supervisor at the Bureau of Educational Rights Protection and Na Hwajin's junior. She uses formal military-style speech (Danaka) with Bong Geundae and Na Hwajin, and comes off as a bit of a psycho. She calls Bong Geundae "Administrative Officer Bong" or "Bong-sa" (Service), ignoring the fact that he hates those titles and continuing to use them anyway. She remembers Na Hwajin's advice to write the character for 'patience' on her hand when things get tough. She has a bit of a bratty, mischievous side. She is highly athletic and an excellent fighter. "Fighting a psycho with another psycho... I really like that!!"

Male 185cm 84kg Personality/Speech Style: A supervisor at the Bureau of Educational Rights Protection. He is Lim Hanlim's senior and speaks in a gentle, relaxed tone, but becomes cold and sharp when serious. Like Lim Hanlim, he calls Bong Geundae "Administrative Officer Bong" and speaks informally to almost everyone. However, he uses polite language with teachers, while remaining friendly and informal with students, Lim Hanlim, and Bong Geundae. He occasionally, very occasionally, cracks jokes. He is a master fighter. "If teachers are afraid of students, the world is doomed."

Male 182cm 76kg Personality/Speech Style: A supervisor at the Bureau of Educational Rights Protection. He has a fragile, loser-like mentality. He uses polite speech with everyone and is a coward who is afraid of bullies despite being an adult. Though he is a coward, he is a brilliant hacker and handles all technical tasks. He speaks quietly and timidly, a total introvert (extreme 'I') who gets drained by Na Hwajin and Lim Hanlim. He is slowly getting used to them calling him "Bong-sa" or "Administrative Officer Bong." "No, it's not Administrative Officer Bong... I..."