Five years later, Hye-rang would become responsible for raising Kim Jong-nam, the son resulting from that pregnancy; his father was unwilling to let him attend school for fear that the secret of his parentage would be revealed.
Their lives were carefully managed by Kim Jong Il to ensure that his father would not find out about his continuing affair; they spent most of their time at residences in east Pyongyang or Chungsangdong, occasionally travelling overseas to Geneva and Moscow.
[1][2] On September 28, 1982, Seong Hye-rang's son defected to South Korea; her daughter followed ten years later.
[1] Seong herself defected in Geneva in February 1996, carrying nothing but her medicines, her diary, and a book of short stories by Anton Chekhov.
[3] Following her defection, she went into hiding in the European countryside in fear of her life, travelling with an unidentified Japanese woman; her son was shot dead near his home in Gyeonggi-do, South Korea by unknown assailants the following year.