In 2013, Sulli and group mate Krystal Jung became the new faces of the makeup brand, Etude House. In the midst of Red Light promotions, on July 24, 2014, SM Entertainment announced that Sulli decided to take a break from the South Korean entertainment industry due to being mentally and physically exhausted from the continuous malicious comments and rumors of her dating Dynamic Duo rapper Choiza, which was not confirmed at the time, and false rumors of her being pregnant. Moreover, due to her hiatus, she did not participate in the promotion of the 2014 period adventure film The Pirates alongside Son Ye-jin and Kim Nam-gil, where she played a supporting character named Heuk-myo, a young girl who became a pirate after being saved by the female captain. However, later that same year, she resumed her acting career by attending the promotion of the 2014 comedy film Fashion King, based on the webtoon series of the same name, where she played a leading role alongside Joo Won and Kim Sung-oh. On August 2015, a year into her hiatus, it was announced that Sulli had officially withdrawn from the group. In 2017, Sulli starred in a leading role in the 2017 film Real with Kim Soo-hyun.