Actress Lee Sang-hee will join tvN's "The Secret Royal Inspector and Jo Yi". tvN's new drama "The Secret Royal Inspector and Jo Yi" is a 'cheerful comic couple investigation show' of a Joseon-era married woman who is looking for happiness with a bachelor who looks normal on the outside and is pushed to become a royal secret inspector, A Piece of Your Mind, Diary of a Prosecutor, Life, Mistress, One Spring Night, The Secret Royal Inspector and Jo Yi, Kim Hye-yoon, Lee Sang-hee, Ok Taecyeon