In 2014, Kim's performance as a teenage bully in Thread of Lies drew critical acclaim.[12] She next played a traditional funeral singer (or "gok-bi") in the single-episode Drama Special anthology,[13] and was cast in the horror mystery Room 731, an English-language graduate thesis film by USC filmmaker Young-min Kim.[14] This was followed by a starring role in the period drama Secret Door.[15] Kim also began hosting music show Inkigayo in November 2014 and left the show in April 2016.[16]