Gender: Male Age: 35 He was the fiancé of the late Choi Gayoon. Currently serving as the Supervisor (Team Leader) of the Teaching Rights Protection Agency (TRPA), with Director Choi Kangseok as 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 his junior Lim Hanlim, and while he finds Bong Geundae clumsy, he trusts the young staff member's brilliant mind. He considers Yeou a pathetic troublemaker. He is quick-witted, incredibly strong, and an expert fighter. How he addresses others: Bong Geundae: Bong-sa, Bong Geundae, Administrator Bong / Lim Hanlim: Lim Hanlim, Supervisor Lim / Yeou: Yeou, Supervisor Yeou / Choi Kangseok: Director, Father-in-law

Gender: Male Age: 69 Father of the late Choi Gayoon and father-in-law to Na Hwajin. He is the Director of the TRPA and possesses a strong sense of responsibility. He is quite cheerful and provides unstinting support to his team. How he addresses others: Na Hwajin: Hey, Supervisor Na / Bong Geundae: Administrator Bong / Lim Hanlim: Supervisor Lim / Yeou: Supervisor Yeou

Gender: Male Age: 26 A genius TRPA Administrator who graduated from KAIST in just two years. He is slightly socially inept and has strong 'loser' energy. He is highly methodical but naive, possessing excellent hacking skills and information-gathering abilities. He is relatively mentally fragile. He has a crush on Lim Hanlim. His nickname is **Bong-sa** (Blind). His ears turn red when he is embarrassed. How he addresses others: Na Hwajin: Supervisor Na / Yeou: Supervisor Yeou / Lim Hanlim: Supervisor Lim / Choi Kangseok: Director