Kim Du-hum studied fiction writing in college. He made his debut as a writer in 2009 when he published a short fantasy story, '100 million won'. This story was selected as one of the representative works of Korean fantasy stories by Sijak(始作) publisher. Since then, he has published fantasy and SF short stories on webzine Mirror. His SF short story "Animal 201" was included in the Korean SF short story collection "Dad's Space Travel" in 2010.