Li Qian and Xie Chen are a secretly married couple. They are tit-for-tat superiors and subordinates in the company during the day, and they are close "rivals" when they go home at night. With the goal of "sleeping" each other, the two started a series of ambiguous pulls and workplace competitions. Xie Chen guarded secretly, while Li Qian worked hard to regain her mother's embezzled inheritance. When Xie Chen's "childhood sweetheart" Xu Weilan intervenes and Li Qian's "ex-fiancé" Pei Xubai appears, the hidden jealousy and true feelings gradually emerge. After jointly dealing with family disputes and business conspiracies, the two recognized their deep love for each other and moved from contract to sincerity. In the end, Li Qian successfully took over the company, Xie Chen also revealed his wife's identity, and the lovers finally got married.