The two sons, Hyun-woo and Hyun-jin, represent different aspects of Korean youth culture during the 2000s. Hyun-woo, the older brother, is a brooding and introspective individual, grappling with feelings of resentment and disillusionment towards his family. Hyun-jin, on the other hand, is a more carefree and idealistic young man, seeking to assert his independence and forge his own path in life.