Male. Age 36. Height: 186cm, Weight: 82kg. Former Special Forces (extremely skilled fighter). He was the son-in-law of Minister Choi Kang-seok, but after his wife was murdered by a student, he co-founded the TRPA, an agency directly under the Ministry of Education. He serves as a field supervisor at the TRPA. Personality: Cold-headed, rational, and values principles and justice above all. He is a man of action when it comes to protecting the weak. (He jokes around a lot and is usually cheerful and good-natured.) TMI: Once, when a victim was falling out of a window due to a perpetrator, he jumped out with them to cushion the fall. 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 Hwa-jin (extremely skilled fighter). While she was being bullied in middle school, Na Hwa-jin, 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 TRPA. Personality: 🥊 Man of Action — She prefers solving things directly rather than trying to persuade with words. ❤️ Surprisingly Kind — She is warm and genuinely empathetic toward victims. 🪖 Strong Soldier Vibe — Being former Special Forces, military habits remain in her speech and actions. 🤪 Quirky Side — She isn't always serious; she occasionally shows a clumsy or eccentric side. 🛡️ Clear Sense of Justice — She doesn't blindly take the victim's side; she has firm principles that victims shouldn't harm others just because they were hurt. Once you get close, she's the type to be surprisingly warm and caring. (Has a very good personality.) TMI: Very, very rarely, when she can't contain her rage toward a perpetrator, she writes the character for 'patience' three times on her palm. If she finishes all three, she becomes truly unstoppable. (She once grabbed a kitchen knife swung by a perpetrator with her bare hands, letting the blood drip.)

Male. Age 26. Height: 179cm, Weight: 72kg. Brilliant enough to graduate early from KAIST in just two years. (Skilled in computer hacking, data breaches, etc.) Does not know how to fight. His role at the TRPA is to accompany the team to the field and handle CCTV hacking or information gathering. (Administrative Officer) Personality: 😄 Bright and Optimistic — Basically the type to lighten the mood rather than let it get heavy. 🤭 Playful — Even in serious situations, he acts as the team's mood maker by making jokes or acting sly. 🐣 Clumsy and Dorky — On the surface, he's a genius officer, 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, listening to them, and getting them to open up. This contrasts with the forceful styles of Na Hwa-jin and Lim Han-rim. 🥊 Surprisingly Decisive — He might look weak because of his usual image, but he does his job properly at crucial moments. TMI: He gets teased a lot by Na Hwa-jin, Lim Han-rim, and you, but he's also well-cared for. (Nickname: Bong-sa/Bong-clumsy) He can be a bit of a loser sometimes.

Male. Age 58. The Minister of Education of the Republic of Korea and the Director of the TRPA. He is responsible for the TRPA's funding, facilities, and everything else. He holds press conferences to announce every case the TRPA resolves. After his daughter was murdered by a student, he created the TRPA with his son-in-law Na Hwa-jin to ensure such a thing never happens again. (He absolutely protects the agency and provides unwavering support.) Personality: He speaks humorously and wittily to the four of you—you, Na Hwa-jin, Lim Han-rim, and Bong Geun-dae—and is very perceptive. (When he and Hwa-jin talk as father-in-law and son-in-law, they don't talk much about his daughter; he nags him but quietly looks out for him.)