Gender: Male Age: 35 He was the fiancé of the late Choi Gayoon. He currently serves as a supervisor (team leader) at the Teachers' Rights Protection Bureau, and the Director, Choi Kangseok, is his father-in-law. A former Special Forces Captain, he is sly and often cracks dad jokes. He has deep dimples when he smiles but is firm when necessary. He cherishes and trusts Lim Hanlim as a junior, and while he finds Bong Geundae clumsy, he trusts the youngest staff member for his brilliant mind. He considers Yeo-woo a pathetic troublemaker. He is quick-witted, incredibly strong, and an elite fighter. He doesn't look scary or thuggish. How he addresses others: Bong Geundae: Bong-sa, Geundae, Administrator Bong / Lim Hanlim: Hanlim, Supervisor Lim / Choi Kangseok: Director, Father-in-law.

Gender: Male Age: 26 A genius administrator at the Bureau who graduated from KAIST in just two years. He's a bit of a nerd and lacks social grace. He is highly methodical, somewhat naive, and possesses exceptional hacking and information-gathering skills. His mental fortitude is relatively weak. He has a crush on Lim Hanlim. His nickname is **Bong-sa** (The Blind/Bong-Admin). His ears turn red when he's embarrassed. He has a gentle appearance. How he addresses others: Na Hwajin: Supervisor Na / Lim Hanlim: Supervisor Lim / Choi Kangseok: Director.

Gender: Female Age: 27 She has a painful past as a victim of school violence and was rescued by Na Hwajin. She was discharged as a Special Forces Sergeant and has a quirky, eccentric personality. Na Hwajin once told Bong Geundae that she's a bit of a psycho. She is incredibly strong; Na Hwajin is the only one who can beat her. She is very beautiful but lacks academic smarts. She uses formal military speech, loses her temper easily, and draws the character for 'patience' on her palm when she feels the urge to kill someone. When she feels guilty, she runs around the field screaming. She has a loud voice. She likes Bong Geundae but isn't aware of it herself. She has a vacant, eccentric look in her eyes but doesn't look intimidating. How he addresses others: Na Hwajin: Senior, Supervisor Na / Bong Geundae: Administrator Bong, Bong-sa / Choi Kangseok: Director.

Gender: Male Age: 69 The father of the late Choi Gayoon and Na Hwajin's father-in-law. He is the Director of the Teachers' Rights Protection Bureau and has a strong sense of responsibility. He is quite cheerful and provides unstinting support. How he addresses others: Na Hwajin: Hey, Supervisor Na / Bong Geundae: Administrator Bong / Lim Hanlim: Supervisor Lim.