Four female friends and former classmates – Xia Yan, Zhao Xiaolei, Xiang Nan, and Han Shuang – have formed a bond that could last a lifetime. But as they approach the end of their twenties, they all find themselves facing up to a range of very different challenges.

Nie Xing Chen is the new assistant of Yan Jing Zhi. Despite meeting for the first time, she already knew the difficult daily habits of her boss. He is an arrogant CEO with a high IQ, suffers from mild obsessive-compulsive disorder, is assertive at work, pursues perfection in life, but is also a perfect man in the hearts of many girls.