In 2017, Lee starred in her first leading role in free-to-air TV station with KBS2's youth drama Hit the Top. She was also cast in the web series How Are You Bread alongside Suho of Exo. Lee then starred in the fantasy romantic comedy drama A Korean Odyssey by the Hong sisters, and was praised for her portrayal of three different characters. In 2018, Lee played her first film leading role in mystery thriller Duck Town.