Choi majored in environmental sculpture art at the University of Seoul and began teaching art. By spending time with children, Choi has come to enjoy imagining like they do. She also studied creative writing and children's stories at the Children's Book Author Academy. For Poong-woon Tak, the Ghost Supervisor #1, Choi received the 2019 7th Story King award. Some of Choi's other works include Daewol's Royals Become the People of Goryeo, Kunnomi: Joseon's Taffy Seller, and Butcher Shop Writing Shop.