Xu plays the titular Du Lala, a woman in her late twenties who finally manages to land a job as a lowly secretary in the sales department of a prestigious international firm. Hard working, dedicated, and overflowing with ideas and energy, she quickly catches the eye of her superiors, in particular that of sales director Huang Wei (Taiwanese popstar Stanley Huang). Unfortunately, there are still a number of obstacles in her way, both on the job and off.