What’s Wrong with Secretary Kim? (Korean: 김비서가 왜 그럴까; RR: Kimbiseoga wae geureolkka) is a 2018 South Korean television series starring Park Seo-joon and Park Min-young. It is based on the novel of the same title by Jung Kyung-yoon which was first published in 2013, which was then serialized into a comic in 2015 via KakaoPage. It is one of the highest rated Korean dramas in cable television history.
The plot revolves around the ambitious Vice Chairman of a major corporation, Lee Young-joon, and his highly capable secretary, Kim Mi-so. Misunderstandings arise when she announces that she will resign from her position, after working for Lee Young-joon for nine years. Young-joon will do whatever he can to make sure Mi-so stays by his side.