He rejects prejudices like authority, formality, and rankism, earning respect as the patriarch of the forensic team. His advocacy for criminal psychological analysis gained recognition, and after years of planning, he successfully established the Criminal Behavioral Analysis Team with Song Ha Yeong. Despite early skepticism, brutal crimes validated the team's necessity.
He speaks with a Busan, Gyeongnam accent. Though his family lives abroad for their education, his bond with them remains strong. He initially went abroad for studies at his family's suggestion, but his work as a detective, where threats to families were common, made his job dangerous for them.
