Dan-bi's colleague at the youth protection team who has long struggled with sexual dysfunction. Her adult fiction serves as an unexpected catalyst for his personal and romantic awakening.
South Korean weapons expert who collaborates with the international emergency response team to trace the whereabouts of the stolen portable nuclear explosive device.
The president of Neulparan High School's student body council, Si-won is one of the students Ki-bum predicts could be targeted. He later claims that he was attacked, but Ki-bum investigates and concludes that Si-won faked the incident because it differed from the other attacks. The claim briefly becomes part of Ki-bum's investigation.
Choi Si-won has 44 screen credits in a career dating back to 2003. Signature works include Forbidden Fairytale, To the Fore, Love Virtually. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.