서강준과 처음에 캐릭터 설정을 할 때 얘기했던 게, 남신은 천재이고 훌륭한 인성을 가지고 있지만 사회적인 지능이 초등학생이었다.
When I first set up my character with Seo Kang-jun, I told him that Nam-sin was a genius and had a great personality, but he had a social intelligence of elementary school student.