Haena Sung began her career as a writer by winning the 2019 Dong-a Ilbo New Writer’s Contest. She is the author of the short story collections Light Underneath Light and Honmono, as well as the novel The Summer Left Behind. In 2024, Honmono won the Lee Hyoseok Literary Award and the Young Writers’ Award, and in 2025, her story “The Guilty Club: Touching the Tiger” also won the Young Writers’ Award.