The series revolves around Narcissistic Lee Young Joon, vice president of a company run by his family. He is so self-absorbed, he thinks too much of himself, he does not acknowledge those around him. Lee Young Joon has a talented and patient secretary Kim Mi Cho who has worked tirelessly for 9 years without any romantic involvement from his side. However, Mi Cho now wants to set up his life, and when he decides to resign from his job, hilarious misunderstandings develop. After 9 years of their strict workplace relationship, can they make it even more so now?
| Drama | What's Wrong with Secretary Kim |
| Actor Park Seo Joon | Yes |
| Country | South Korea |
| Episodes | 16 |
| Aired | 6, 2018 - Jul 26, 2018 |
| Aired On | Wednesday, Thursday |
| Original Network | tvN |
| Duration | 1 hr. 9 min |
| Content Rating | 15+ (Teens 15 or older) |