Yu Ling signed a one-year mutual-help marriage agreement with her blind date Zhao Chen to avoid urging her to get married, and unexpectedly started living together. Zhao Chen concealed his identity, silently guarded Yu Ling, and helped her resolve troubles such as plagiarism of her workplace plans and harassment by top relatives. As they get along, the two gradually fall in love. After their identity is exposed, they go through misunderstandings and tests. In the end, Yu Ling's career is counterattacked and promoted. Zhao Chen also wins trust with sincerity, and the agreed marriage finally becomes a two-way true love.
