Two different yet alike males who is nothing but a CEO and a secretary relations. They hold the most beautiful moments whenever they are together. Unfortunately, they can't be with each other. Not when the said CEO, Sung Hanbin, is already in a relationship with a gorgeous woman. Zhanghao had always felt like a third person whenever he have to be there beside Hanbin which the said girlfriend keeps on clinging to the male. Being a second lead had always filled with nothing but heartbreak. Nevertheless, they somehow managed to be with each other and it's the most happiest moment of their life. However, what if things goes back to how it was when they are already happy? Can a second lead have their happy ending for once? Or was it still a curse that is unbreakable?