Kim Un-su is a South Korean writer. He studied Korean literature at Kyung Hee University, where he also completed master's level coursework. He made his literary debut in the fall of 2002 with his short story ”Easy Writing Lessons” and in 2003 went on to win the Jinju News Writing Contest with ”Danbaljang Street”. In 2006, ”Breaking up with Friday” won the Dong-a Ilbo New Writer's Contest, and his first novel The Cabinet won the 12th Munhakdongne Novel Award. His 2016 novel Hot Blood was awarded the 22nd Hahn Moo-Sook Literary Prize.
