Ahn Sehwa debuted in 2016 when her short story "Cle's Angel" won Halla Ilbo's Annual Spring Literary Contest. Her short story "Someone Broke the Vase" was published through YES24's web series contest and was also selected in the Story Power Plant and the Rising Storywriters contests hosted by the Korea Creative Content Agency. In 2017, she enrolled in the Korea National University of Arts' M.A. program for Screenwriting. In 2018, she wrote her first scenario for a web drama, titled Welcome to Witch's Store.