What's Wrong with Secretary Kim (김비서가 왜 그럴까) is 2018 South Korean television series starring Park Seo-joon, Park Min-young and Lee Tae-hwan. It is based on the novel of the same title by Jang Kyung-yoon which was first published in 2013. The series is airing on tvN in June 2018 on Wednesdays and Thursdays at 21:30 (KST) time slot. Plot: Lee Young-Joon's family runs a large company and he works as the vice-president of the company. He is smart, rich and handsome, but he is arrogant. His secretary is Kim Mi-So. She has worked for him for years and she is perfect for him, but Kim Mi-So decides to quit her job.