A story revolving around a group of friends from university who enter into the workplace.
The kind and simple Lin Zi Yu (Qiao Xin) was fortunate enough to get a position at Feilin, an accomplished PR firm with a good reputation. Unfortunately, she immediately gets on the wrong side of her boss Fan Shu Chen (Leon Zhang) who is a genius in the field. At the same time, the company faces corporate leakages.
Fan Chu Chen suspects that Lin Zi Yu may be the culprit, and his three best friends each have their own opinions on Lin Zi Yu based on their respective interactions with her. To make matters more complicated, Fan Shu Chen's competitor Luo Zong Liang (Ethan Yao) steps out from the sidelines to reveal that he also has ties with Lin Zi Yu. Is she really a spy? Of course, along the way is a romance that blossoms amidst the corporate politics.