Lee Hee-young made her debut in 2013 when her short story Someone Lives Here won the Kim Seung-ok Literary Award's grand prize for aspiring writers. In 2018, Lee's novel Paint won the Changbi Prize for Young Adult Fiction and Who Are You won the Brit-G Romantic Thriller Contest. Lee is also the author of Tester vol. 1, Shaker, Nana, Do You Like Summer Tangerines?, Salt Child, Bea, Face, Ordinary Sunset, Challenge Blue, Breakup Care Insurance, and Summer Summer Vacation.​