Du Lala (played by Qi Wei), a working woman in her thirties, has a smooth life. As the manager of the human resources department of a company, she is capable, decisive and shrewd. If nothing unexpected happens, she will be promoted to human resources director in the near future. In terms of love, her gentle and considerate husband Wang Wei (played by Wang Yaoqing) takes good care of her. It would be great if such a perfect life could continue like this. Unfortunately, things don't go as planned. Casey (played by Wang Ting), an airborne soldier with overseas study experience, suddenly arrives. His strength is not much inferior to Du Lala, and he becomes a strong opponent for the position of human resources director. What Du Lala can't imagine is that Casey is an old acquaintance of her husband's family, especially her mother-in-law, who particularly appreciates Casey. Fires are breaking out both inside and outside the wall. How can Du Lala overcome this difficulty...