Xiang Qing (Xiao Yin) finally entered the special business department of Haixing Group. She didn't expect that her job was to sell sanitary napkins with four handsome men. They are Liu Yue (Zhao Yue), the central air conditioner who shows his gentle side to everyone, Huang Zixuan (Qu Haojun), a sunny boy who is full of energy every day, Zhao Tianlei (Hong Liancheng), a poisonous man with a cold face and a hot heart, and Li Suhang (Xu Zhixian), who has a very hot temper but is unexpectedly gentle. Every day working with these four men is full of uncertainties. In the process of getting along with the four men, Li Suhang gradually attracted Xiang Qing's attention. At first glance, Li Suhang is a perfect man without any weaknesses, but Xiang Qing sees the shadow hidden in his heart in his evasive eyes.