He first appears in Korean records in [[1423]] as an envoy of the Korean court to [[Shimazu Hisatoyo]], seeking the repatriation of Koreans who had been sold into servitude. Genchin successfully returned to Korea with nine Koreans returned by Hisatoyo. | He first appears in Korean records in [[1423]] as an envoy of the Korean court to [[Shimazu Hisatoyo]], seeking the repatriation of Koreans who had been sold into servitude. Genchin successfully returned to Korea with nine Koreans returned by Hisatoyo. |