The characters of the series are as follows:

NAM KANG HO and YEO MI RAN are the main characters of this series. 

DO WON JOON and SHIN NA EUN are the best friends of our main characters.

YEO MI RAN believes the worst in men. She is like that because her father is a sexist who belittles women. This strained her relationship with her father.

NAM KANG HO is the same for women. He does not trust women because he thinks that women are not able to stay loyal and gold diggers. In his early years of being an actor, he met his first love and his first relationship with then rising star actress Oh Se Na. Their relationship was a secret to the public. When Oh Se Na started to become famous, she ended her relationship with NKH for a rich suitor. She and her manager even accused Nam Kang Ho of being a stalker. Because of this, Nam Kang Ho became traumatized to the point that he developed anxiety when getting near women in general. His anxiety is so serious that he has to take medication for temporary relief.

This series is a must-watch for all hopeless romantics. One can learn a lot from this series. 

This is a happy ending.