Jae-Hui Kim graduated from Yonsei University and received a master's degree in film scenario at the Graduate School of Culture and Arts Management at Chugye University for the Arts. He won the Korea Scenario Writers Association Scenario Bank Competition and the NKino Synopsis Competition and has worked as a screenwriter at Kang Je-Kyu Film. 

Kim debuted with Hunminjeongeum Assassination in 2006 and became a bestselling writer of "a successful Korean faction." Since then, he has published mystery novels set in a historical backdrop including The Baekje Society; Colors, Sharaku; The Golden Sword of Honor; and Gyeongseong Detective Yi Sang 1-3, as well as a crime story, Creepy Island, and a literary thriller, The Sea of Spring Days, set in contemporary Korea. Kim received the 28th Korean Mystery Literature Grand Prize for Gyeongseong Detective Yi Sang, in which the poet Yi Sang and the novelist Gu Bo appear as detectives. Kim is a member of the Korean Mystery Writers Association