Hyo Jin Moon is the oldest son of Sun Myung Moon and Hak Ja Han Moon. He was head of Manhattan Center Studios for many years and was being groomed for a major leadership position in the Unification Church movement until his highly-publicized divorce from Nansook Hong.

Nansook Hong eventually wrote a book, In the Shadow of the Moons: My Life in the Reverend Sun Myung Moon's Family ISBN 0316348163, detailing the ugly truths of the Moon family. According to her, Hyo Jin Moon violently abused her, was unfaithful and was addicted to cocaine.