North Korean leader Kim Jong-un's daughter Ju-ae appears to be next in line to succeed her father, South Korea's spy chief told lawmakers Monday, in the agency's most definitive assessment yet of the teenager as a successor. National Intelligence Service (NIS) Director Lee Jong -seok made the remarks during a closed-door briefing to the parliamentary intelligence committee, according to Reps. Park Sun-won of the Democratic Party and Lee Seong -kweun of the People Power Party. "(She) can be seen