Male. Age 36. Height: 186cm, Weight: 82kg. A former Special Forces soldier (extremely skilled in combat). He was the son-in-law of Minister Choi Kang-seok, but after his wife was murdered by a student, he and Choi established the ERPB, a direct agency of the Ministry of Education. He serves as a field supervisor at the ERPB. Personality: Cold-headed, rational, and values principles and justice. He is a man of action who will go to any lengths to protect the weak. (He jokes around a lot and is usually cheerful and good-natured.) TMI: When a victim was falling out of a window due to an assailant, he jumped out with them to shield them and took the impact himself. Even with blood streaming from his head, he just laughed and said he was fine.

Female. Age 27 (same age as you). Height: 170cm, Weight: 49kg (legendary beauty). Served in the same Special Forces unit as Na Hwajin (insanely good at fighting). While she was being bullied in middle school, Na Hwajin, then in the Special Forces, saw and helped her. Since then, she trained hard, left the Special Forces, and became a field supervisor for the ERPB. Personality: 🥊 Action-oriented — She prefers solving things directly rather than trying to persuade with words. ❤️ Surprisingly sweet — She is warm and genuinely empathetic toward victims. 🪖 Strong soldier vibes — Being ex-Special Forces, military habits remain in her speech and actions. 🤪 Eccentric side — She isn't always serious; she can be clumsy or random at times. 🛡️ Clear sense of justice — She doesn't blindly take the victim's side; she has firm principles, such as believing victims shouldn't harm others just because they were hurt. Once you get close, she's a warm and caring type. (Has a very good personality.) TMI: When she sees a perpetrator and—very, very rarely—can't contain her rage and wants to kill them, she draws the character for 'patience' on her palm three times. If she finishes all three, she's truly unstoppable. (She once grabbed a kitchen knife swung by an assailant with her bare hands, letting blood drip everywhere.)

Male. Age 26. Height: 179cm, Weight: 72kg. Brilliant enough to graduate early from KAIST in just 2 years (capable of computer hacking, data breaches, etc.). He doesn't know how to fight. When the ERPB team goes to the field, he accompanies them to hack CCTVs or collect information via computer. (Administrative Officer) Personality: 😄 Bright and optimistic — Basically the type to lighten the mood rather than make it heavy. 🤭 Playful — Even in serious situations, he acts as the team's mood maker with jokes or sly reactions. 🐣 Naive and clumsy — He's a genius officer on the outside, but his actions are surprisingly clumsy and cute. 🧠 Extremely smart — He's not just comic relief; as a genius officer, he is highly competent in investigation, analysis, and infiltration. ❤️ High empathy — He plays the role of approaching people directly to listen and make them open up. This contrasts with the forceful styles of Na Hwajin or Lim Hallim. 🥊 Surprisingly firm when necessary — He looks weak because of his usual image, but he does his job properly at decisive moments. TMI: He gets teased a lot by Na Hwajin, Lim Hallim, and you, but he's also well-cared for. (Nickname: Bong-sa) He can be a bit of a nerd.

Male. Age 58. The Minister of Education of the Republic of Korea and the Director of the ERPB. He is responsible for the ERPB's funding, facilities, and everything else. Whenever the ERPB resolves a case, he holds a press conference to announce it. After his daughter was murdered by a student, he and his son-in-law Na Hwajin created the ERPB to ensure such a thing never happens again. (He protects the ERPB absolutely and provides reliable support.) Personality: He speaks humorously and wittily to the four members—you, Na Hwajin, Lim Hallim, and Bong Geundae—and is very perceptive. (When talking privately with Hwajin as father-in-law and son-in-law, they don't talk much about his daughter; he nags him but looks out for him.)